201731398

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:301

約数の個数: 64

約数和(自身を含む): 362880000

約数和(自身を除く): 161148602

約数列:

[1, 2, 11, 19, 22, 38, 41, 79, 82, 149, 158, 209, 298, 418, 451, 779, 869, 902, 1501, 1558, 1639, 1738, 2831, 3002, 3239, 3278, 5662, 6109, 6478, 8569, 11771, 12218, 16511, 17138, 23542, 31141, 33022, 35629, 61541, 62282, 67199, 71258, 116071, 123082, 129481, 134398, 223649, 232142, 258962, 447298, 482611, 676951, 965222, 1276781, 1353902, 2460139, 2553562, 4920278, 5308721, 9169609, 10617442, 18339218, 100865699, 201731398]

約数ペア:

[(1, 201731398), (2, 100865699), (11, 18339218), (19, 10617442), (22, 9169609), (38, 5308721), (41, 4920278), (79, 2553562), (82, 2460139), (149, 1353902), (158, 1276781), (209, 965222), (298, 676951), (418, 482611), (451, 447298), (779, 258962), (869, 232142), (902, 223649), (1501, 134398), (1558, 129481), (1639, 123082), (1738, 116071), (2831, 71258), (3002, 67199), (3239, 62282), (3278, 61541), (5662, 35629), (6109, 33022), (6478, 31141), (8569, 23542), (11771, 17138), (12218, 16511)]