221289656

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{6709}}^1$

素因数の和:6772

約数の個数: 64

約数和(自身を含む): 515328000

約数和(自身を除く): 294038344

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 31, 38, 56, 62, 76, 124, 133, 152, 217, 248, 266, 434, 532, 589, 868, 1064, 1178, 1736, 2356, 4123, 4712, 6709, 8246, 13418, 16492, 26836, 32984, 46963, 53672, 93926, 127471, 187852, 207979, 254942, 375704, 415958, 509884, 831916, 892297, 1019768, 1455853, 1663832, 1784594, 2911706, 3569188, 3951601, 5823412, 7138376, 7903202, 11646824, 15806404, 27661207, 31612808, 55322414, 110644828, 221289656]

約数ペア:

[(1, 221289656), (2, 110644828), (4, 55322414), (7, 31612808), (8, 27661207), (14, 15806404), (19, 11646824), (28, 7903202), (31, 7138376), (38, 5823412), (56, 3951601), (62, 3569188), (76, 2911706), (124, 1784594), (133, 1663832), (152, 1455853), (217, 1019768), (248, 892297), (266, 831916), (434, 509884), (532, 415958), (589, 375704), (868, 254942), (1064, 207979), (1178, 187852), (1736, 127471), (2356, 93926), (4123, 53672), (4712, 46963), (6709, 32984), (8246, 26836), (13418, 16492)]