78286880

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{69899}}^1$

素因数の和:69921

約数の個数: 48

約数和(自身を含む): 211377600

約数和(自身を除く): 133090720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 69899, 139798, 279596, 349495, 489293, 559192, 698990, 978586, 1118384, 1397980, 1957172, 2236768, 2446465, 2795960, 3914344, 4892930, 5591920, 7828688, 9785860, 11183840, 15657376, 19571720, 39143440, 78286880]

約数ペア:

[(1, 78286880), (2, 39143440), (4, 19571720), (5, 15657376), (7, 11183840), (8, 9785860), (10, 7828688), (14, 5591920), (16, 4892930), (20, 3914344), (28, 2795960), (32, 2446465), (35, 2236768), (40, 1957172), (56, 1397980), (70, 1118384), (80, 978586), (112, 698990), (140, 559192), (160, 489293), (224, 349495), (280, 279596), (560, 139798), (1120, 69899)]