217360

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:56

約数の個数: 80

約数和(自身を含む): 624960

約数和(自身を除く): 407600

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 19, 20, 22, 26, 38, 40, 44, 52, 55, 65, 76, 80, 88, 95, 104, 110, 130, 143, 152, 176, 190, 208, 209, 220, 247, 260, 286, 304, 380, 418, 440, 494, 520, 572, 715, 760, 836, 880, 988, 1040, 1045, 1144, 1235, 1430, 1520, 1672, 1976, 2090, 2288, 2470, 2717, 2860, 3344, 3952, 4180, 4940, 5434, 5720, 8360, 9880, 10868, 11440, 13585, 16720, 19760, 21736, 27170, 43472, 54340, 108680, 217360]

約数ペア:

[(1, 217360), (2, 108680), (4, 54340), (5, 43472), (8, 27170), (10, 21736), (11, 19760), (13, 16720), (16, 13585), (19, 11440), (20, 10868), (22, 9880), (26, 8360), (38, 5720), (40, 5434), (44, 4940), (52, 4180), (55, 3952), (65, 3344), (76, 2860), (80, 2717), (88, 2470), (95, 2288), (104, 2090), (110, 1976), (130, 1672), (143, 1520), (152, 1430), (176, 1235), (190, 1144), (208, 1045), (209, 1040), (220, 988), (247, 880), (260, 836), (286, 760), (304, 715), (380, 572), (418, 520), (440, 494)]