20199084620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{27481}}^1$

素因数の和:27771

約数の個数: 96

約数和(自身を含む): 50029551936

約数和(自身を除く): 29830467316

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 257, 260, 286, 514, 572, 715, 1028, 1285, 1430, 2570, 2827, 2860, 3341, 5140, 5654, 6682, 11308, 13364, 14135, 16705, 27481, 28270, 33410, 36751, 54962, 56540, 66820, 73502, 109924, 137405, 147004, 183755, 274810, 302291, 357253, 367510, 549620, 604582, 714506, 735020, 1209164, 1429012, 1511455, 1786265, 3022910, 3572530, 3929783, 6045820, 7062617, 7145060, 7859566, 14125234, 15719132, 19648915, 28250468, 35313085, 39297830, 70626170, 77688787, 78595660, 91814021, 141252340, 155377574, 183628042, 310755148, 367256084, 388443935, 459070105, 776887870, 918140210, 1009954231, 1553775740, 1836280420, 2019908462, 4039816924, 5049771155, 10099542310, 20199084620]

約数ペア:

[(1, 20199084620), (2, 10099542310), (4, 5049771155), (5, 4039816924), (10, 2019908462), (11, 1836280420), (13, 1553775740), (20, 1009954231), (22, 918140210), (26, 776887870), (44, 459070105), (52, 388443935), (55, 367256084), (65, 310755148), (110, 183628042), (130, 155377574), (143, 141252340), (220, 91814021), (257, 78595660), (260, 77688787), (286, 70626170), (514, 39297830), (572, 35313085), (715, 28250468), (1028, 19648915), (1285, 15719132), (1430, 14125234), (2570, 7859566), (2827, 7145060), (2860, 7062617), (3341, 6045820), (5140, 3929783), (5654, 3572530), (6682, 3022910), (11308, 1786265), (13364, 1511455), (14135, 1429012), (16705, 1209164), (27481, 735020), (28270, 714506), (33410, 604582), (36751, 549620), (54962, 367510), (56540, 357253), (66820, 302291), (73502, 274810), (109924, 183755), (137405, 147004)]