20199702560

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{112621}}^1$

素因数の和:112714

約数の個数: 96

約数和(自身を含む): 51085339200

約数和(自身を除く): 30885636640

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 59, 76, 80, 95, 118, 152, 160, 190, 236, 295, 304, 380, 472, 590, 608, 760, 944, 1121, 1180, 1520, 1888, 2242, 2360, 3040, 4484, 4720, 5605, 8968, 9440, 11210, 17936, 22420, 35872, 44840, 89680, 112621, 179360, 225242, 450484, 563105, 900968, 1126210, 1801936, 2139799, 2252420, 3603872, 4279598, 4504840, 6644639, 8559196, 9009680, 10698995, 13289278, 17118392, 18019360, 21397990, 26578556, 33223195, 34236784, 42795980, 53157112, 66446390, 68473568, 85591960, 106314224, 126248141, 132892780, 171183920, 212628448, 252496282, 265785560, 342367840, 504992564, 531571120, 631240705, 1009985128, 1063142240, 1262481410, 2019970256, 2524962820, 4039940512, 5049925640, 10099851280, 20199702560]

約数ペア:

[(1, 20199702560), (2, 10099851280), (4, 5049925640), (5, 4039940512), (8, 2524962820), (10, 2019970256), (16, 1262481410), (19, 1063142240), (20, 1009985128), (32, 631240705), (38, 531571120), (40, 504992564), (59, 342367840), (76, 265785560), (80, 252496282), (95, 212628448), (118, 171183920), (152, 132892780), (160, 126248141), (190, 106314224), (236, 85591960), (295, 68473568), (304, 66446390), (380, 53157112), (472, 42795980), (590, 34236784), (608, 33223195), (760, 26578556), (944, 21397990), (1121, 18019360), (1180, 17118392), (1520, 13289278), (1888, 10698995), (2242, 9009680), (2360, 8559196), (3040, 6644639), (4484, 4504840), (4720, 4279598), (5605, 3603872), (8968, 2252420), (9440, 2139799), (11210, 1801936), (17936, 1126210), (22420, 900968), (35872, 563105), (44840, 450484), (89680, 225242), (112621, 179360)]