21213064560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{993121}}^1$

素因数の和:993226

約数の個数: 80

約数和(自身を含む): 66499449120

約数和(自身を除く): 45286384560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 89, 120, 178, 240, 267, 356, 445, 534, 712, 890, 1068, 1335, 1424, 1780, 2136, 2670, 3560, 4272, 5340, 7120, 10680, 21360, 993121, 1986242, 2979363, 3972484, 4965605, 5958726, 7944968, 9931210, 11917452, 14896815, 15889936, 19862420, 23834904, 29793630, 39724840, 47669808, 59587260, 79449680, 88387769, 119174520, 176775538, 238349040, 265163307, 353551076, 441938845, 530326614, 707102152, 883877690, 1060653228, 1325816535, 1414204304, 1767755380, 2121306456, 2651633070, 3535510760, 4242612912, 5303266140, 7071021520, 10606532280, 21213064560]

約数ペア:

[(1, 21213064560), (2, 10606532280), (3, 7071021520), (4, 5303266140), (5, 4242612912), (6, 3535510760), (8, 2651633070), (10, 2121306456), (12, 1767755380), (15, 1414204304), (16, 1325816535), (20, 1060653228), (24, 883877690), (30, 707102152), (40, 530326614), (48, 441938845), (60, 353551076), (80, 265163307), (89, 238349040), (120, 176775538), (178, 119174520), (240, 88387769), (267, 79449680), (356, 59587260), (445, 47669808), (534, 39724840), (712, 29793630), (890, 23834904), (1068, 19862420), (1335, 15889936), (1424, 14896815), (1780, 11917452), (2136, 9931210), (2670, 7944968), (3560, 5958726), (4272, 4965605), (5340, 3972484), (7120, 2979363), (10680, 1986242), (21360, 993121)]