401375817

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{179}}^1$

素因数の和:288

約数の個数: 80

約数和(自身を含む): 669081600

約数和(自身を除く): 267705783

約数列:

[1, 3, 9, 19, 27, 31, 47, 57, 81, 93, 141, 171, 179, 279, 423, 513, 537, 589, 837, 893, 1269, 1457, 1539, 1611, 1767, 2511, 2679, 3401, 3807, 4371, 4833, 5301, 5549, 8037, 8413, 10203, 13113, 14499, 15903, 16647, 24111, 25239, 27683, 30609, 39339, 47709, 49941, 72333, 75717, 83049, 91827, 105431, 118017, 149823, 159847, 227151, 249147, 260803, 275481, 316293, 449469, 479541, 681453, 747441, 782409, 948879, 1438623, 2242323, 2347227, 2846637, 4315869, 4955257, 7041681, 8539911, 12947607, 14865771, 21125043, 44597313, 133791939, 401375817]

約数ペア:

[(1, 401375817), (3, 133791939), (9, 44597313), (19, 21125043), (27, 14865771), (31, 12947607), (47, 8539911), (57, 7041681), (81, 4955257), (93, 4315869), (141, 2846637), (171, 2347227), (179, 2242323), (279, 1438623), (423, 948879), (513, 782409), (537, 747441), (589, 681453), (837, 479541), (893, 449469), (1269, 316293), (1457, 275481), (1539, 260803), (1611, 249147), (1767, 227151), (2511, 159847), (2679, 149823), (3401, 118017), (3807, 105431), (4371, 91827), (4833, 83049), (5301, 75717), (5549, 72333), (8037, 49941), (8413, 47709), (10203, 39339), (13113, 30609), (14499, 27683), (15903, 25239), (16647, 24111)]