20931875500

素因数分解:

$2^2\times 5^3\times {\mathrm{61}}^1\times {\mathrm{173}}^1\times {\mathrm{3967}}^1$

素因数の和:4220

約数の個数: 96

約数和(自身を含む): 46745008128

約数和(自身を除く): 25813132628

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 125, 173, 244, 250, 305, 346, 500, 610, 692, 865, 1220, 1525, 1730, 3050, 3460, 3967, 4325, 6100, 7625, 7934, 8650, 10553, 15250, 15868, 17300, 19835, 21106, 21625, 30500, 39670, 42212, 43250, 52765, 79340, 86500, 99175, 105530, 198350, 211060, 241987, 263825, 396700, 483974, 495875, 527650, 686291, 967948, 991750, 1055300, 1209935, 1319125, 1372582, 1983500, 2419870, 2638250, 2745164, 3431455, 4839740, 5276500, 6049675, 6862910, 12099350, 13725820, 17157275, 24198700, 30248375, 34314550, 41863751, 60496750, 68629100, 83727502, 85786375, 120993500, 167455004, 171572750, 209318755, 343145500, 418637510, 837275020, 1046593775, 2093187550, 4186375100, 5232968875, 10465937750, 20931875500]

約数ペア:

[(1, 20931875500), (2, 10465937750), (4, 5232968875), (5, 4186375100), (10, 2093187550), (20, 1046593775), (25, 837275020), (50, 418637510), (61, 343145500), (100, 209318755), (122, 171572750), (125, 167455004), (173, 120993500), (244, 85786375), (250, 83727502), (305, 68629100), (346, 60496750), (500, 41863751), (610, 34314550), (692, 30248375), (865, 24198700), (1220, 17157275), (1525, 13725820), (1730, 12099350), (3050, 6862910), (3460, 6049675), (3967, 5276500), (4325, 4839740), (6100, 3431455), (7625, 2745164), (7934, 2638250), (8650, 2419870), (10553, 1983500), (15250, 1372582), (15868, 1319125), (17300, 1209935), (19835, 1055300), (21106, 991750), (21625, 967948), (30500, 686291), (39670, 527650), (42212, 495875), (43250, 483974), (52765, 396700), (79340, 263825), (86500, 241987), (99175, 211060), (105530, 198350)]