248748760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1481}}^1$

素因数の和:1541

約数の個数: 128

約数和(自身を含む): 672235200

約数和(自身を除く): 423486440

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 19, 20, 26, 34, 38, 40, 52, 65, 68, 76, 85, 95, 104, 130, 136, 152, 170, 190, 221, 247, 260, 323, 340, 380, 442, 494, 520, 646, 680, 760, 884, 988, 1105, 1235, 1292, 1481, 1615, 1768, 1976, 2210, 2470, 2584, 2962, 3230, 4199, 4420, 4940, 5924, 6460, 7405, 8398, 8840, 9880, 11848, 12920, 14810, 16796, 19253, 20995, 25177, 28139, 29620, 33592, 38506, 41990, 50354, 56278, 59240, 77012, 83980, 96265, 100708, 112556, 125885, 140695, 154024, 167960, 192530, 201416, 225112, 251770, 281390, 327301, 365807, 385060, 478363, 503540, 562780, 654602, 731614, 770120, 956726, 1007080, 1125560, 1309204, 1463228, 1636505, 1829035, 1913452, 2391815, 2618408, 2926456, 3273010, 3658070, 3826904, 4783630, 6218719, 6546020, 7316140, 9567260, 12437438, 13092040, 14632280, 19134520, 24874876, 31093595, 49749752, 62187190, 124374380, 248748760]

約数ペア:

[(1, 248748760), (2, 124374380), (4, 62187190), (5, 49749752), (8, 31093595), (10, 24874876), (13, 19134520), (17, 14632280), (19, 13092040), (20, 12437438), (26, 9567260), (34, 7316140), (38, 6546020), (40, 6218719), (52, 4783630), (65, 3826904), (68, 3658070), (76, 3273010), (85, 2926456), (95, 2618408), (104, 2391815), (130, 1913452), (136, 1829035), (152, 1636505), (170, 1463228), (190, 1309204), (221, 1125560), (247, 1007080), (260, 956726), (323, 770120), (340, 731614), (380, 654602), (442, 562780), (494, 503540), (520, 478363), (646, 385060), (680, 365807), (760, 327301), (884, 281390), (988, 251770), (1105, 225112), (1235, 201416), (1292, 192530), (1481, 167960), (1615, 154024), (1768, 140695), (1976, 125885), (2210, 112556), (2470, 100708), (2584, 96265), (2962, 83980), (3230, 77012), (4199, 59240), (4420, 56278), (4940, 50354), (5924, 41990), (6460, 38506), (7405, 33592), (8398, 29620), (8840, 28139), (9880, 25177), (11848, 20995), (12920, 19253), (14810, 16796)]