840081780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{641}}^1\times {\mathrm{809}}^1$

素因数の和:1471

約数の個数: 120

約数和(自身を含む): 2642741640

約数和(自身を除く): 1802659860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 641, 809, 810, 1282, 1618, 1620, 1923, 2427, 2564, 3205, 3236, 3846, 4045, 4854, 5769, 6410, 7281, 7692, 8090, 9615, 9708, 11538, 12135, 12820, 14562, 16180, 17307, 19230, 21843, 23076, 24270, 28845, 29124, 34614, 36405, 38460, 43686, 48540, 51921, 57690, 65529, 69228, 72810, 86535, 87372, 103842, 109215, 115380, 131058, 145620, 173070, 207684, 218430, 259605, 262116, 327645, 346140, 436860, 518569, 519210, 655290, 1037138, 1038420, 1310580, 1555707, 2074276, 2592845, 3111414, 4667121, 5185690, 6222828, 7778535, 9334242, 10371380, 14001363, 15557070, 18668484, 23335605, 28002726, 31114140, 42004089, 46671210, 56005452, 70006815, 84008178, 93342420, 140013630, 168016356, 210020445, 280027260, 420040890, 840081780]

約数ペア:

[(1, 840081780), (2, 420040890), (3, 280027260), (4, 210020445), (5, 168016356), (6, 140013630), (9, 93342420), (10, 84008178), (12, 70006815), (15, 56005452), (18, 46671210), (20, 42004089), (27, 31114140), (30, 28002726), (36, 23335605), (45, 18668484), (54, 15557070), (60, 14001363), (81, 10371380), (90, 9334242), (108, 7778535), (135, 6222828), (162, 5185690), (180, 4667121), (270, 3111414), (324, 2592845), (405, 2074276), (540, 1555707), (641, 1310580), (809, 1038420), (810, 1037138), (1282, 655290), (1618, 519210), (1620, 518569), (1923, 436860), (2427, 346140), (2564, 327645), (3205, 262116), (3236, 259605), (3846, 218430), (4045, 207684), (4854, 173070), (5769, 145620), (6410, 131058), (7281, 115380), (7692, 109215), (8090, 103842), (9615, 87372), (9708, 86535), (11538, 72810), (12135, 69228), (12820, 65529), (14562, 57690), (16180, 51921), (17307, 48540), (19230, 43686), (21843, 38460), (23076, 36405), (24270, 34614), (28845, 29124)]