1388771720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{461}}^1$

素因数の和:568

約数の個数: 192

約数和(自身を含む): 3839497200

約数和(自身を除く): 2450725480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 49, 53, 56, 58, 70, 98, 106, 116, 140, 145, 196, 203, 212, 232, 245, 265, 280, 290, 371, 392, 406, 424, 461, 490, 530, 580, 742, 812, 922, 980, 1015, 1060, 1160, 1421, 1484, 1537, 1624, 1844, 1855, 1960, 2030, 2120, 2305, 2597, 2842, 2968, 3074, 3227, 3688, 3710, 4060, 4610, 5194, 5684, 6148, 6454, 7105, 7420, 7685, 8120, 9220, 10388, 10759, 11368, 12296, 12908, 12985, 13369, 14210, 14840, 15370, 16135, 18440, 20776, 21518, 22589, 24433, 25816, 25970, 26738, 28420, 30740, 32270, 43036, 45178, 48866, 51940, 53476, 53795, 56840, 61480, 64540, 66845, 75313, 86072, 90356, 93583, 97732, 103880, 106952, 107590, 112945, 122165, 129080, 133690, 150626, 171031, 180712, 187166, 195464, 215180, 225890, 244330, 267380, 301252, 342062, 374332, 376565, 430360, 451780, 467915, 488660, 534760, 602504, 655081, 684124, 708557, 748664, 753130, 855155, 903560, 935830, 977320, 1197217, 1310162, 1368248, 1417114, 1506260, 1710310, 1871660, 2394434, 2620324, 2834228, 3012520, 3275405, 3420620, 3542785, 3743320, 4788868, 4959899, 5240648, 5668456, 5986085, 6550810, 6841240, 7085570, 9577736, 9919798, 11972170, 13101620, 14171140, 19839596, 23944340, 24799495, 26203240, 28342280, 34719293, 39679192, 47888680, 49598990, 69438586, 99197980, 138877172, 173596465, 198395960, 277754344, 347192930, 694385860, 1388771720]

約数ペア:

[(1, 1388771720), (2, 694385860), (4, 347192930), (5, 277754344), (7, 198395960), (8, 173596465), (10, 138877172), (14, 99197980), (20, 69438586), (28, 49598990), (29, 47888680), (35, 39679192), (40, 34719293), (49, 28342280), (53, 26203240), (56, 24799495), (58, 23944340), (70, 19839596), (98, 14171140), (106, 13101620), (116, 11972170), (140, 9919798), (145, 9577736), (196, 7085570), (203, 6841240), (212, 6550810), (232, 5986085), (245, 5668456), (265, 5240648), (280, 4959899), (290, 4788868), (371, 3743320), (392, 3542785), (406, 3420620), (424, 3275405), (461, 3012520), (490, 2834228), (530, 2620324), (580, 2394434), (742, 1871660), (812, 1710310), (922, 1506260), (980, 1417114), (1015, 1368248), (1060, 1310162), (1160, 1197217), (1421, 977320), (1484, 935830), (1537, 903560), (1624, 855155), (1844, 753130), (1855, 748664), (1960, 708557), (2030, 684124), (2120, 655081), (2305, 602504), (2597, 534760), (2842, 488660), (2968, 467915), (3074, 451780), (3227, 430360), (3688, 376565), (3710, 374332), (4060, 342062), (4610, 301252), (5194, 267380), (5684, 244330), (6148, 225890), (6454, 215180), (7105, 195464), (7420, 187166), (7685, 180712), (8120, 171031), (9220, 150626), (10388, 133690), (10759, 129080), (11368, 122165), (12296, 112945), (12908, 107590), (12985, 106952), (13369, 103880), (14210, 97732), (14840, 93583), (15370, 90356), (16135, 86072), (18440, 75313), (20776, 66845), (21518, 64540), (22589, 61480), (24433, 56840), (25816, 53795), (25970, 53476), (26738, 51940), (28420, 48866), (30740, 45178), (32270, 43036)]