128875860

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:172

約数の個数: 240

約数和(自身を含む): 439084800

約数和(自身を除く): 310208940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 53, 54, 57, 60, 76, 79, 81, 90, 95, 106, 108, 114, 135, 158, 159, 162, 171, 180, 190, 212, 228, 237, 265, 270, 285, 316, 318, 324, 342, 380, 395, 405, 474, 477, 513, 530, 540, 570, 636, 684, 711, 790, 795, 810, 855, 948, 954, 1007, 1026, 1060, 1140, 1185, 1422, 1431, 1501, 1539, 1580, 1590, 1620, 1710, 1908, 2014, 2052, 2133, 2370, 2385, 2565, 2844, 2862, 3002, 3021, 3078, 3180, 3420, 3555, 4028, 4187, 4266, 4293, 4503, 4740, 4770, 5035, 5130, 5724, 6004, 6042, 6156, 6399, 7110, 7155, 7505, 7695, 8374, 8532, 8586, 9006, 9063, 9540, 10070, 10260, 10665, 12084, 12561, 12798, 13509, 14220, 14310, 15010, 15105, 15390, 16748, 17172, 18012, 18126, 20140, 20935, 21330, 21465, 22515, 25122, 25596, 27018, 27189, 28620, 30020, 30210, 30780, 31995, 36252, 37683, 40527, 41870, 42660, 42930, 45030, 45315, 50244, 54036, 54378, 60420, 62805, 63990, 67545, 75366, 79553, 81054, 81567, 83740, 85860, 90060, 90630, 108756, 113049, 121581, 125610, 127980, 135090, 135945, 150732, 159106, 162108, 163134, 181260, 188415, 202635, 226098, 238659, 243162, 251220, 270180, 271890, 318212, 326268, 339147, 376830, 397765, 405270, 407835, 452196, 477318, 486324, 543780, 565245, 607905, 678294, 715977, 753660, 795530, 810540, 815670, 954636, 1130490, 1193295, 1215810, 1356588, 1431954, 1591060, 1631340, 1695735, 2147931, 2260980, 2386590, 2431620, 2863908, 3391470, 3579885, 4295862, 4773180, 6443793, 6782940, 7159770, 8591724, 10739655, 12887586, 14319540, 21479310, 25775172, 32218965, 42958620, 64437930, 128875860]

約数ペア:

[(1, 128875860), (2, 64437930), (3, 42958620), (4, 32218965), (5, 25775172), (6, 21479310), (9, 14319540), (10, 12887586), (12, 10739655), (15, 8591724), (18, 7159770), (19, 6782940), (20, 6443793), (27, 4773180), (30, 4295862), (36, 3579885), (38, 3391470), (45, 2863908), (53, 2431620), (54, 2386590), (57, 2260980), (60, 2147931), (76, 1695735), (79, 1631340), (81, 1591060), (90, 1431954), (95, 1356588), (106, 1215810), (108, 1193295), (114, 1130490), (135, 954636), (158, 815670), (159, 810540), (162, 795530), (171, 753660), (180, 715977), (190, 678294), (212, 607905), (228, 565245), (237, 543780), (265, 486324), (270, 477318), (285, 452196), (316, 407835), (318, 405270), (324, 397765), (342, 376830), (380, 339147), (395, 326268), (405, 318212), (474, 271890), (477, 270180), (513, 251220), (530, 243162), (540, 238659), (570, 226098), (636, 202635), (684, 188415), (711, 181260), (790, 163134), (795, 162108), (810, 159106), (855, 150732), (948, 135945), (954, 135090), (1007, 127980), (1026, 125610), (1060, 121581), (1140, 113049), (1185, 108756), (1422, 90630), (1431, 90060), (1501, 85860), (1539, 83740), (1580, 81567), (1590, 81054), (1620, 79553), (1710, 75366), (1908, 67545), (2014, 63990), (2052, 62805), (2133, 60420), (2370, 54378), (2385, 54036), (2565, 50244), (2844, 45315), (2862, 45030), (3002, 42930), (3021, 42660), (3078, 41870), (3180, 40527), (3420, 37683), (3555, 36252), (4028, 31995), (4187, 30780), (4266, 30210), (4293, 30020), (4503, 28620), (4740, 27189), (4770, 27018), (5035, 25596), (5130, 25122), (5724, 22515), (6004, 21465), (6042, 21330), (6156, 20935), (6399, 20140), (7110, 18126), (7155, 18012), (7505, 17172), (7695, 16748), (8374, 15390), (8532, 15105), (8586, 15010), (9006, 14310), (9063, 14220), (9540, 13509), (10070, 12798), (10260, 12561), (10665, 12084)]