21375913600

素因数分解:

$2^7\times 5^2\times {\mathrm{31}}^1\times {\mathrm{215483}}^1$

素因数の和:215538

約数の個数: 96

約数和(自身を含む): 54508832640

約数和(自身を除く): 33132919040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 128, 155, 160, 200, 248, 310, 320, 400, 496, 620, 640, 775, 800, 992, 1240, 1550, 1600, 1984, 2480, 3100, 3200, 3968, 4960, 6200, 9920, 12400, 19840, 24800, 49600, 99200, 215483, 430966, 861932, 1077415, 1723864, 2154830, 3447728, 4309660, 5387075, 6679973, 6895456, 8619320, 10774150, 13359946, 13790912, 17238640, 21548300, 26719892, 27581824, 33399865, 34477280, 43096600, 53439784, 66799730, 68954560, 86193200, 106879568, 133599460, 137909120, 166999325, 172386400, 213759136, 267198920, 333998650, 344772800, 427518272, 534397840, 667997300, 689545600, 855036544, 1068795680, 1335994600, 2137591360, 2671989200, 4275182720, 5343978400, 10687956800, 21375913600]

約数ペア:

[(1, 21375913600), (2, 10687956800), (4, 5343978400), (5, 4275182720), (8, 2671989200), (10, 2137591360), (16, 1335994600), (20, 1068795680), (25, 855036544), (31, 689545600), (32, 667997300), (40, 534397840), (50, 427518272), (62, 344772800), (64, 333998650), (80, 267198920), (100, 213759136), (124, 172386400), (128, 166999325), (155, 137909120), (160, 133599460), (200, 106879568), (248, 86193200), (310, 68954560), (320, 66799730), (400, 53439784), (496, 43096600), (620, 34477280), (640, 33399865), (775, 27581824), (800, 26719892), (992, 21548300), (1240, 17238640), (1550, 13790912), (1600, 13359946), (1984, 10774150), (2480, 8619320), (3100, 6895456), (3200, 6679973), (3968, 5387075), (4960, 4309660), (6200, 3447728), (9920, 2154830), (12400, 1723864), (19840, 1077415), (24800, 861932), (49600, 430966), (99200, 215483)]