639453492

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{7253}}^1$

素因数の和:7373

約数の個数: 72

約数和(自身を含む): 1689891840

約数和(自身を除く): 1050438348

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 79, 93, 124, 158, 186, 237, 279, 316, 372, 474, 558, 711, 948, 1116, 1422, 2449, 2844, 4898, 7253, 7347, 9796, 14506, 14694, 21759, 22041, 29012, 29388, 43518, 44082, 65277, 87036, 88164, 130554, 224843, 261108, 449686, 572987, 674529, 899372, 1145974, 1349058, 1718961, 2023587, 2291948, 2698116, 3437922, 4047174, 5156883, 6875844, 8094348, 10313766, 17762597, 20627532, 35525194, 53287791, 71050388, 106575582, 159863373, 213151164, 319726746, 639453492]

約数ペア:

[(1, 639453492), (2, 319726746), (3, 213151164), (4, 159863373), (6, 106575582), (9, 71050388), (12, 53287791), (18, 35525194), (31, 20627532), (36, 17762597), (62, 10313766), (79, 8094348), (93, 6875844), (124, 5156883), (158, 4047174), (186, 3437922), (237, 2698116), (279, 2291948), (316, 2023587), (372, 1718961), (474, 1349058), (558, 1145974), (711, 899372), (948, 674529), (1116, 572987), (1422, 449686), (2449, 261108), (2844, 224843), (4898, 130554), (7253, 88164), (7347, 87036), (9796, 65277), (14506, 44082), (14694, 43518), (21759, 29388), (22041, 29012)]