1981014080

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{691}}^1$

素因数の和:773

約数の個数: 168

約数和(自身を含む): 5180234496

約数和(自身を除く): 3199220416

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 64, 68, 80, 85, 124, 136, 155, 160, 170, 248, 272, 289, 310, 320, 340, 496, 527, 544, 578, 620, 680, 691, 992, 1054, 1088, 1156, 1240, 1360, 1382, 1445, 1984, 2108, 2312, 2480, 2635, 2720, 2764, 2890, 3455, 4216, 4624, 4960, 5270, 5440, 5528, 5780, 6910, 8432, 8959, 9248, 9920, 10540, 11056, 11560, 11747, 13820, 16864, 17918, 18496, 21080, 21421, 22112, 23120, 23494, 27640, 33728, 35836, 42160, 42842, 44224, 44795, 46240, 46988, 55280, 58735, 71672, 84320, 85684, 89590, 92480, 93976, 107105, 110560, 117470, 143344, 168640, 171368, 179180, 187952, 199699, 214210, 221120, 234940, 286688, 342736, 358360, 364157, 375904, 399398, 428420, 469880, 573376, 685472, 716720, 728314, 751808, 798796, 856840, 939760, 998495, 1370944, 1433440, 1456628, 1597592, 1713680, 1820785, 1879520, 1996990, 2866880, 2913256, 3195184, 3427360, 3641570, 3759040, 3993980, 5826512, 6190669, 6390368, 6854720, 7283140, 7987960, 11653024, 12381338, 12780736, 14566280, 15975920, 23306048, 24762676, 29132560, 30953345, 31951840, 49525352, 58265120, 61906690, 63903680, 99050704, 116530240, 123813380, 198101408, 247626760, 396202816, 495253520, 990507040, 1981014080]

約数ペア:

[(1, 1981014080), (2, 990507040), (4, 495253520), (5, 396202816), (8, 247626760), (10, 198101408), (16, 123813380), (17, 116530240), (20, 99050704), (31, 63903680), (32, 61906690), (34, 58265120), (40, 49525352), (62, 31951840), (64, 30953345), (68, 29132560), (80, 24762676), (85, 23306048), (124, 15975920), (136, 14566280), (155, 12780736), (160, 12381338), (170, 11653024), (248, 7987960), (272, 7283140), (289, 6854720), (310, 6390368), (320, 6190669), (340, 5826512), (496, 3993980), (527, 3759040), (544, 3641570), (578, 3427360), (620, 3195184), (680, 2913256), (691, 2866880), (992, 1996990), (1054, 1879520), (1088, 1820785), (1156, 1713680), (1240, 1597592), (1360, 1456628), (1382, 1433440), (1445, 1370944), (1984, 998495), (2108, 939760), (2312, 856840), (2480, 798796), (2635, 751808), (2720, 728314), (2764, 716720), (2890, 685472), (3455, 573376), (4216, 469880), (4624, 428420), (4960, 399398), (5270, 375904), (5440, 364157), (5528, 358360), (5780, 342736), (6910, 286688), (8432, 234940), (8959, 221120), (9248, 214210), (9920, 199699), (10540, 187952), (11056, 179180), (11560, 171368), (11747, 168640), (13820, 143344), (16864, 117470), (17918, 110560), (18496, 107105), (21080, 93976), (21421, 92480), (22112, 89590), (23120, 85684), (23494, 84320), (27640, 71672), (33728, 58735), (35836, 55280), (42160, 46988), (42842, 46240), (44224, 44795)]