66219920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1553}}^1$

素因数の和:1620

約数の個数: 80

約数和(自身を含む): 169957872

約数和(自身を除く): 103737952

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 41, 52, 65, 80, 82, 104, 130, 164, 205, 208, 260, 328, 410, 520, 533, 656, 820, 1040, 1066, 1553, 1640, 2132, 2665, 3106, 3280, 4264, 5330, 6212, 7765, 8528, 10660, 12424, 15530, 20189, 21320, 24848, 31060, 40378, 42640, 62120, 63673, 80756, 100945, 124240, 127346, 161512, 201890, 254692, 318365, 323024, 403780, 509384, 636730, 807560, 827749, 1018768, 1273460, 1615120, 1655498, 2546920, 3310996, 4138745, 5093840, 6621992, 8277490, 13243984, 16554980, 33109960, 66219920]

約数ペア:

[(1, 66219920), (2, 33109960), (4, 16554980), (5, 13243984), (8, 8277490), (10, 6621992), (13, 5093840), (16, 4138745), (20, 3310996), (26, 2546920), (40, 1655498), (41, 1615120), (52, 1273460), (65, 1018768), (80, 827749), (82, 807560), (104, 636730), (130, 509384), (164, 403780), (205, 323024), (208, 318365), (260, 254692), (328, 201890), (410, 161512), (520, 127346), (533, 124240), (656, 100945), (820, 80756), (1040, 63673), (1066, 62120), (1553, 42640), (1640, 40378), (2132, 31060), (2665, 24848), (3106, 21320), (3280, 20189), (4264, 15530), (5330, 12424), (6212, 10660), (7765, 8528)]