178173680

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{1259}}^1$

素因数の和:1362

約数の個数: 80

約数和(自身を含む): 435909600

約数和(自身を除く): 257735920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 61, 80, 116, 122, 145, 232, 244, 290, 305, 464, 488, 580, 610, 976, 1160, 1220, 1259, 1769, 2320, 2440, 2518, 3538, 4880, 5036, 6295, 7076, 8845, 10072, 12590, 14152, 17690, 20144, 25180, 28304, 35380, 36511, 50360, 70760, 73022, 76799, 100720, 141520, 146044, 153598, 182555, 292088, 307196, 365110, 383995, 584176, 614392, 730220, 767990, 1228784, 1460440, 1535980, 2227171, 2920880, 3071960, 4454342, 6143920, 8908684, 11135855, 17817368, 22271710, 35634736, 44543420, 89086840, 178173680]

約数ペア:

[(1, 178173680), (2, 89086840), (4, 44543420), (5, 35634736), (8, 22271710), (10, 17817368), (16, 11135855), (20, 8908684), (29, 6143920), (40, 4454342), (58, 3071960), (61, 2920880), (80, 2227171), (116, 1535980), (122, 1460440), (145, 1228784), (232, 767990), (244, 730220), (290, 614392), (305, 584176), (464, 383995), (488, 365110), (580, 307196), (610, 292088), (976, 182555), (1160, 153598), (1220, 146044), (1259, 141520), (1769, 100720), (2320, 76799), (2440, 73022), (2518, 70760), (3538, 50360), (4880, 36511), (5036, 35380), (6295, 28304), (7076, 25180), (8845, 20144), (10072, 17690), (12590, 14152)]