248664220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{2851}}^1$

素因数の和:2963

約数の個数: 72

約数和(自身を含む): 614491920

約数和(自身を除く): 365827700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 89, 98, 140, 178, 196, 245, 356, 445, 490, 623, 890, 980, 1246, 1780, 2492, 2851, 3115, 4361, 5702, 6230, 8722, 11404, 12460, 14255, 17444, 19957, 21805, 28510, 39914, 43610, 57020, 79828, 87220, 99785, 139699, 199570, 253739, 279398, 399140, 507478, 558796, 698495, 1014956, 1268695, 1396990, 1776173, 2537390, 2793980, 3552346, 5074780, 7104692, 8880865, 12433211, 17761730, 24866422, 35523460, 49732844, 62166055, 124332110, 248664220]

約数ペア:

[(1, 248664220), (2, 124332110), (4, 62166055), (5, 49732844), (7, 35523460), (10, 24866422), (14, 17761730), (20, 12433211), (28, 8880865), (35, 7104692), (49, 5074780), (70, 3552346), (89, 2793980), (98, 2537390), (140, 1776173), (178, 1396990), (196, 1268695), (245, 1014956), (356, 698495), (445, 558796), (490, 507478), (623, 399140), (890, 279398), (980, 253739), (1246, 199570), (1780, 139699), (2492, 99785), (2851, 87220), (3115, 79828), (4361, 57020), (5702, 43610), (6230, 39914), (8722, 28510), (11404, 21805), (12460, 19957), (14255, 17444)]