21885840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{269}}^1$

素因数の和:401

約数の個数: 120

約数和(自身を含む): 74426040

約数和(自身を除く): 52540200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 113, 120, 144, 180, 226, 240, 269, 339, 360, 452, 538, 565, 678, 720, 807, 904, 1017, 1076, 1130, 1345, 1356, 1614, 1695, 1808, 2034, 2152, 2260, 2421, 2690, 2712, 3228, 3390, 4035, 4068, 4304, 4520, 4842, 5085, 5380, 5424, 6456, 6780, 8070, 8136, 9040, 9684, 10170, 10760, 12105, 12912, 13560, 16140, 16272, 19368, 20340, 21520, 24210, 27120, 30397, 32280, 38736, 40680, 48420, 60794, 64560, 81360, 91191, 96840, 121588, 151985, 182382, 193680, 243176, 273573, 303970, 364764, 455955, 486352, 547146, 607940, 729528, 911910, 1094292, 1215880, 1367865, 1459056, 1823820, 2188584, 2431760, 2735730, 3647640, 4377168, 5471460, 7295280, 10942920, 21885840]

約数ペア:

[(1, 21885840), (2, 10942920), (3, 7295280), (4, 5471460), (5, 4377168), (6, 3647640), (8, 2735730), (9, 2431760), (10, 2188584), (12, 1823820), (15, 1459056), (16, 1367865), (18, 1215880), (20, 1094292), (24, 911910), (30, 729528), (36, 607940), (40, 547146), (45, 486352), (48, 455955), (60, 364764), (72, 303970), (80, 273573), (90, 243176), (113, 193680), (120, 182382), (144, 151985), (180, 121588), (226, 96840), (240, 91191), (269, 81360), (339, 64560), (360, 60794), (452, 48420), (538, 40680), (565, 38736), (678, 32280), (720, 30397), (807, 27120), (904, 24210), (1017, 21520), (1076, 20340), (1130, 19368), (1345, 16272), (1356, 16140), (1614, 13560), (1695, 12912), (1808, 12105), (2034, 10760), (2152, 10170), (2260, 9684), (2421, 9040), (2690, 8136), (2712, 8070), (3228, 6780), (3390, 6456), (4035, 5424), (4068, 5380), (4304, 5085), (4520, 4842)]