65940640

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:342

約数の個数: 96

約数和(自身を含む): 166320000

約数和(自身を除く): 100379360

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 109, 152, 160, 190, 199, 218, 304, 380, 398, 436, 545, 608, 760, 796, 872, 995, 1090, 1520, 1592, 1744, 1990, 2071, 2180, 3040, 3184, 3488, 3781, 3980, 4142, 4360, 6368, 7562, 7960, 8284, 8720, 10355, 15124, 15920, 16568, 17440, 18905, 20710, 21691, 30248, 31840, 33136, 37810, 41420, 43382, 60496, 66272, 75620, 82840, 86764, 108455, 120992, 151240, 165680, 173528, 216910, 302480, 331360, 347056, 412129, 433820, 604960, 694112, 824258, 867640, 1648516, 1735280, 2060645, 3297032, 3470560, 4121290, 6594064, 8242580, 13188128, 16485160, 32970320, 65940640]

約数ペア:

[(1, 65940640), (2, 32970320), (4, 16485160), (5, 13188128), (8, 8242580), (10, 6594064), (16, 4121290), (19, 3470560), (20, 3297032), (32, 2060645), (38, 1735280), (40, 1648516), (76, 867640), (80, 824258), (95, 694112), (109, 604960), (152, 433820), (160, 412129), (190, 347056), (199, 331360), (218, 302480), (304, 216910), (380, 173528), (398, 165680), (436, 151240), (545, 120992), (608, 108455), (760, 86764), (796, 82840), (872, 75620), (995, 66272), (1090, 60496), (1520, 43382), (1592, 41420), (1744, 37810), (1990, 33136), (2071, 31840), (2180, 30248), (3040, 21691), (3184, 20710), (3488, 18905), (3781, 17440), (3980, 16568), (4142, 15920), (4360, 15124), (6368, 10355), (7562, 8720), (7960, 8284)]