128937420

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:170

約数の個数: 240

約数和(自身を含む): 439084800

約数和(自身を除く): 310147380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 59, 60, 71, 76, 81, 90, 95, 108, 114, 118, 135, 142, 162, 171, 177, 180, 190, 213, 228, 236, 270, 284, 285, 295, 324, 342, 354, 355, 380, 405, 426, 513, 531, 540, 570, 590, 639, 684, 708, 710, 810, 852, 855, 885, 1026, 1062, 1065, 1121, 1140, 1180, 1278, 1349, 1420, 1539, 1593, 1620, 1710, 1770, 1917, 2052, 2124, 2130, 2242, 2556, 2565, 2655, 2698, 3078, 3186, 3195, 3363, 3420, 3540, 3834, 4047, 4189, 4260, 4484, 4779, 5130, 5310, 5396, 5605, 5751, 6156, 6372, 6390, 6726, 6745, 7668, 7695, 7965, 8094, 8378, 9558, 9585, 10089, 10260, 10620, 11210, 11502, 12141, 12567, 12780, 13452, 13490, 15390, 15930, 16188, 16756, 16815, 19116, 19170, 20178, 20235, 20945, 22420, 23004, 23895, 24282, 25134, 26980, 28755, 30267, 30780, 31860, 33630, 36423, 37701, 38340, 40356, 40470, 41890, 47790, 48564, 50268, 50445, 57510, 60534, 60705, 62835, 67260, 72846, 75402, 79591, 80940, 83780, 90801, 95580, 100890, 109269, 113103, 115020, 121068, 121410, 125670, 145692, 150804, 151335, 159182, 181602, 182115, 188505, 201780, 218538, 226206, 238773, 242820, 251340, 302670, 318364, 339309, 363204, 364230, 377010, 397955, 437076, 452412, 454005, 477546, 546345, 565515, 605340, 678618, 716319, 728460, 754020, 795910, 908010, 955092, 1092690, 1131030, 1193865, 1357236, 1432638, 1591820, 1696545, 1816020, 2148957, 2185380, 2262060, 2387730, 2865276, 3393090, 3581595, 4297914, 4775460, 6446871, 6786180, 7163190, 8595828, 10744785, 12893742, 14326380, 21489570, 25787484, 32234355, 42979140, 64468710, 128937420]

約数ペア:

[(1, 128937420), (2, 64468710), (3, 42979140), (4, 32234355), (5, 25787484), (6, 21489570), (9, 14326380), (10, 12893742), (12, 10744785), (15, 8595828), (18, 7163190), (19, 6786180), (20, 6446871), (27, 4775460), (30, 4297914), (36, 3581595), (38, 3393090), (45, 2865276), (54, 2387730), (57, 2262060), (59, 2185380), (60, 2148957), (71, 1816020), (76, 1696545), (81, 1591820), (90, 1432638), (95, 1357236), (108, 1193865), (114, 1131030), (118, 1092690), (135, 955092), (142, 908010), (162, 795910), (171, 754020), (177, 728460), (180, 716319), (190, 678618), (213, 605340), (228, 565515), (236, 546345), (270, 477546), (284, 454005), (285, 452412), (295, 437076), (324, 397955), (342, 377010), (354, 364230), (355, 363204), (380, 339309), (405, 318364), (426, 302670), (513, 251340), (531, 242820), (540, 238773), (570, 226206), (590, 218538), (639, 201780), (684, 188505), (708, 182115), (710, 181602), (810, 159182), (852, 151335), (855, 150804), (885, 145692), (1026, 125670), (1062, 121410), (1065, 121068), (1121, 115020), (1140, 113103), (1180, 109269), (1278, 100890), (1349, 95580), (1420, 90801), (1539, 83780), (1593, 80940), (1620, 79591), (1710, 75402), (1770, 72846), (1917, 67260), (2052, 62835), (2124, 60705), (2130, 60534), (2242, 57510), (2556, 50445), (2565, 50268), (2655, 48564), (2698, 47790), (3078, 41890), (3186, 40470), (3195, 40356), (3363, 38340), (3420, 37701), (3540, 36423), (3834, 33630), (4047, 31860), (4189, 30780), (4260, 30267), (4484, 28755), (4779, 26980), (5130, 25134), (5310, 24282), (5396, 23895), (5605, 23004), (5751, 22420), (6156, 20945), (6372, 20235), (6390, 20178), (6726, 19170), (6745, 19116), (7668, 16815), (7695, 16756), (7965, 16188), (8094, 15930), (8378, 15390), (9558, 13490), (9585, 13452), (10089, 12780), (10260, 12567), (10620, 12141), (11210, 11502)]