20823648430

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{479}}^1\times {\mathrm{1933}}^1$

素因数の和:2605

約数の個数: 64

約数和(自身を含む): 40704975360

約数和(自身を除く): 19881326930

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 173, 346, 479, 865, 958, 1730, 1933, 2249, 2395, 3866, 4498, 4790, 6227, 9665, 11245, 12454, 19330, 22490, 25129, 31135, 50258, 62270, 82867, 125645, 165734, 251290, 334409, 414335, 668818, 828670, 925907, 1077271, 1672045, 1851814, 2154542, 3344090, 4347317, 4629535, 5386355, 8694634, 9259070, 10772710, 12036791, 21736585, 24073582, 43473170, 60183955, 120367910, 160181911, 320363822, 800909555, 1601819110, 2082364843, 4164729686, 10411824215, 20823648430]

約数ペア:

[(1, 20823648430), (2, 10411824215), (5, 4164729686), (10, 2082364843), (13, 1601819110), (26, 800909555), (65, 320363822), (130, 160181911), (173, 120367910), (346, 60183955), (479, 43473170), (865, 24073582), (958, 21736585), (1730, 12036791), (1933, 10772710), (2249, 9259070), (2395, 8694634), (3866, 5386355), (4498, 4629535), (4790, 4347317), (6227, 3344090), (9665, 2154542), (11245, 1851814), (12454, 1672045), (19330, 1077271), (22490, 925907), (25129, 828670), (31135, 668818), (50258, 414335), (62270, 334409), (82867, 251290), (125645, 165734)]