68847280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:155

約数の個数: 160

約数和(自身を含む): 185131008

約数和(自身を除く): 116283728

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 31, 34, 40, 46, 62, 68, 71, 80, 85, 92, 115, 124, 136, 142, 155, 170, 184, 230, 248, 272, 284, 310, 340, 355, 368, 391, 460, 496, 527, 568, 620, 680, 710, 713, 782, 920, 1054, 1136, 1207, 1240, 1360, 1420, 1426, 1564, 1633, 1840, 1955, 2108, 2201, 2414, 2480, 2635, 2840, 2852, 3128, 3266, 3565, 3910, 4216, 4402, 4828, 5270, 5680, 5704, 6035, 6256, 6532, 7130, 7820, 8165, 8432, 8804, 9656, 10540, 11005, 11408, 12070, 12121, 13064, 14260, 15640, 16330, 17608, 19312, 21080, 22010, 24140, 24242, 26128, 27761, 28520, 31280, 32660, 35216, 37417, 42160, 44020, 48280, 48484, 50623, 55522, 57040, 60605, 65320, 74834, 88040, 96560, 96968, 101246, 111044, 121210, 130640, 138805, 149668, 176080, 187085, 193936, 202492, 222088, 242420, 253115, 277610, 299336, 374170, 404984, 444176, 484840, 506230, 555220, 598672, 748340, 809968, 860591, 969680, 1012460, 1110440, 1496680, 1721182, 2024920, 2220880, 2993360, 3442364, 4049840, 4302955, 6884728, 8605910, 13769456, 17211820, 34423640, 68847280]

約数ペア:

[(1, 68847280), (2, 34423640), (4, 17211820), (5, 13769456), (8, 8605910), (10, 6884728), (16, 4302955), (17, 4049840), (20, 3442364), (23, 2993360), (31, 2220880), (34, 2024920), (40, 1721182), (46, 1496680), (62, 1110440), (68, 1012460), (71, 969680), (80, 860591), (85, 809968), (92, 748340), (115, 598672), (124, 555220), (136, 506230), (142, 484840), (155, 444176), (170, 404984), (184, 374170), (230, 299336), (248, 277610), (272, 253115), (284, 242420), (310, 222088), (340, 202492), (355, 193936), (368, 187085), (391, 176080), (460, 149668), (496, 138805), (527, 130640), (568, 121210), (620, 111044), (680, 101246), (710, 96968), (713, 96560), (782, 88040), (920, 74834), (1054, 65320), (1136, 60605), (1207, 57040), (1240, 55522), (1360, 50623), (1420, 48484), (1426, 48280), (1564, 44020), (1633, 42160), (1840, 37417), (1955, 35216), (2108, 32660), (2201, 31280), (2414, 28520), (2480, 27761), (2635, 26128), (2840, 24242), (2852, 24140), (3128, 22010), (3266, 21080), (3565, 19312), (3910, 17608), (4216, 16330), (4402, 15640), (4828, 14260), (5270, 13064), (5680, 12121), (5704, 12070), (6035, 11408), (6256, 11005), (6532, 10540), (7130, 9656), (7820, 8804), (8165, 8432)]