287990820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{5351}}^1$

素因数の和:5402

約数の個数: 144

約数和(自身を含む): 981856512

約数和(自身を除く): 693865692

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 23, 26, 30, 36, 39, 45, 46, 52, 60, 65, 69, 78, 90, 92, 115, 117, 130, 138, 156, 180, 195, 207, 230, 234, 260, 276, 299, 345, 390, 414, 460, 468, 585, 598, 690, 780, 828, 897, 1035, 1170, 1196, 1380, 1495, 1794, 2070, 2340, 2691, 2990, 3588, 4140, 4485, 5351, 5382, 5980, 8970, 10702, 10764, 13455, 16053, 17940, 21404, 26755, 26910, 32106, 48159, 53510, 53820, 64212, 69563, 80265, 96318, 107020, 123073, 139126, 160530, 192636, 208689, 240795, 246146, 278252, 321060, 347815, 369219, 417378, 481590, 492292, 615365, 626067, 695630, 738438, 834756, 963180, 1043445, 1107657, 1230730, 1252134, 1391260, 1476876, 1599949, 1846095, 2086890, 2215314, 2461460, 2504268, 3130335, 3199898, 3692190, 4173780, 4430628, 4799847, 5538285, 6260670, 6399796, 7384380, 7999745, 9599694, 11076570, 12521340, 14399541, 15999490, 19199388, 22153140, 23999235, 28799082, 31998980, 47998470, 57598164, 71997705, 95996940, 143995410, 287990820]

約数ペア:

[(1, 287990820), (2, 143995410), (3, 95996940), (4, 71997705), (5, 57598164), (6, 47998470), (9, 31998980), (10, 28799082), (12, 23999235), (13, 22153140), (15, 19199388), (18, 15999490), (20, 14399541), (23, 12521340), (26, 11076570), (30, 9599694), (36, 7999745), (39, 7384380), (45, 6399796), (46, 6260670), (52, 5538285), (60, 4799847), (65, 4430628), (69, 4173780), (78, 3692190), (90, 3199898), (92, 3130335), (115, 2504268), (117, 2461460), (130, 2215314), (138, 2086890), (156, 1846095), (180, 1599949), (195, 1476876), (207, 1391260), (230, 1252134), (234, 1230730), (260, 1107657), (276, 1043445), (299, 963180), (345, 834756), (390, 738438), (414, 695630), (460, 626067), (468, 615365), (585, 492292), (598, 481590), (690, 417378), (780, 369219), (828, 347815), (897, 321060), (1035, 278252), (1170, 246146), (1196, 240795), (1380, 208689), (1495, 192636), (1794, 160530), (2070, 139126), (2340, 123073), (2691, 107020), (2990, 96318), (3588, 80265), (4140, 69563), (4485, 64212), (5351, 53820), (5382, 53510), (5980, 48159), (8970, 32106), (10702, 26910), (10764, 26755), (13455, 21404), (16053, 17940)]