20187375920

素因数分解:

$2^4\times 5^1\times {\mathrm{229}}^1\times {\mathrm{1101931}}^1$

素因数の和:1102173

約数の個数: 40

約数和(自身を含む): 47140650960

約数和(自身を除く): 26953275040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 229, 458, 916, 1145, 1832, 2290, 3664, 4580, 9160, 18320, 1101931, 2203862, 4407724, 5509655, 8815448, 11019310, 17630896, 22038620, 44077240, 88154480, 252342199, 504684398, 1009368796, 1261710995, 2018737592, 2523421990, 4037475184, 5046843980, 10093687960, 20187375920]

約数ペア:

[(1, 20187375920), (2, 10093687960), (4, 5046843980), (5, 4037475184), (8, 2523421990), (10, 2018737592), (16, 1261710995), (20, 1009368796), (40, 504684398), (80, 252342199), (229, 88154480), (458, 44077240), (916, 22038620), (1145, 17630896), (1832, 11019310), (2290, 8815448), (3664, 5509655), (4580, 4407724), (9160, 2203862), (18320, 1101931)]