261922290

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{233}}^1$

素因数の和:404

約数の個数: 128

約数和(自身を含む): 742390272

約数和(自身を除く): 480467982

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 53, 70, 101, 105, 106, 159, 202, 210, 233, 265, 303, 318, 371, 466, 505, 530, 606, 699, 707, 742, 795, 1010, 1113, 1165, 1398, 1414, 1515, 1590, 1631, 1855, 2121, 2226, 2330, 3030, 3262, 3495, 3535, 3710, 4242, 4893, 5353, 5565, 6990, 7070, 8155, 9786, 10605, 10706, 11130, 12349, 16059, 16310, 21210, 23533, 24465, 24698, 26765, 32118, 37047, 37471, 47066, 48930, 53530, 61745, 70599, 74094, 74942, 80295, 86443, 112413, 117665, 123490, 141198, 160590, 164731, 172886, 185235, 187355, 224826, 235330, 259329, 329462, 352995, 370470, 374710, 432215, 494193, 518658, 562065, 705990, 823655, 864430, 988386, 1124130, 1247249, 1296645, 1647310, 2470965, 2494498, 2593290, 3741747, 4941930, 6236245, 7483494, 8730743, 12472490, 17461486, 18708735, 26192229, 37417470, 43653715, 52384458, 87307430, 130961145, 261922290]

約数ペア:

[(1, 261922290), (2, 130961145), (3, 87307430), (5, 52384458), (6, 43653715), (7, 37417470), (10, 26192229), (14, 18708735), (15, 17461486), (21, 12472490), (30, 8730743), (35, 7483494), (42, 6236245), (53, 4941930), (70, 3741747), (101, 2593290), (105, 2494498), (106, 2470965), (159, 1647310), (202, 1296645), (210, 1247249), (233, 1124130), (265, 988386), (303, 864430), (318, 823655), (371, 705990), (466, 562065), (505, 518658), (530, 494193), (606, 432215), (699, 374710), (707, 370470), (742, 352995), (795, 329462), (1010, 259329), (1113, 235330), (1165, 224826), (1398, 187355), (1414, 185235), (1515, 172886), (1590, 164731), (1631, 160590), (1855, 141198), (2121, 123490), (2226, 117665), (2330, 112413), (3030, 86443), (3262, 80295), (3495, 74942), (3535, 74094), (3710, 70599), (4242, 61745), (4893, 53530), (5353, 48930), (5565, 47066), (6990, 37471), (7070, 37047), (8155, 32118), (9786, 26765), (10605, 24698), (10706, 24465), (11130, 23533), (12349, 21210), (16059, 16310)]