219873680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3989}}^1$

素因数の和:4068

約数の個数: 80

約数和(自身を含む): 561057840

約数和(自身を除く): 341184160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 53, 65, 80, 104, 106, 130, 208, 212, 260, 265, 424, 520, 530, 689, 848, 1040, 1060, 1378, 2120, 2756, 3445, 3989, 4240, 5512, 6890, 7978, 11024, 13780, 15956, 19945, 27560, 31912, 39890, 51857, 55120, 63824, 79780, 103714, 159560, 207428, 211417, 259285, 319120, 414856, 422834, 518570, 829712, 845668, 1037140, 1057085, 1691336, 2074280, 2114170, 2748421, 3382672, 4148560, 4228340, 5496842, 8456680, 10993684, 13742105, 16913360, 21987368, 27484210, 43974736, 54968420, 109936840, 219873680]

約数ペア:

[(1, 219873680), (2, 109936840), (4, 54968420), (5, 43974736), (8, 27484210), (10, 21987368), (13, 16913360), (16, 13742105), (20, 10993684), (26, 8456680), (40, 5496842), (52, 4228340), (53, 4148560), (65, 3382672), (80, 2748421), (104, 2114170), (106, 2074280), (130, 1691336), (208, 1057085), (212, 1037140), (260, 845668), (265, 829712), (424, 518570), (520, 422834), (530, 414856), (689, 319120), (848, 259285), (1040, 211417), (1060, 207428), (1378, 159560), (2120, 103714), (2756, 79780), (3445, 63824), (3989, 55120), (4240, 51857), (5512, 39890), (6890, 31912), (7978, 27560), (11024, 19945), (13780, 15956)]