20408432

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{359}}^1$

素因数の和:414

約数の個数: 80

約数和(自身を含む): 48211200

約数和(自身を除く): 27802768

約数列:

[1, 2, 4, 8, 11, 16, 17, 19, 22, 34, 38, 44, 68, 76, 88, 136, 152, 176, 187, 209, 272, 304, 323, 359, 374, 418, 646, 718, 748, 836, 1292, 1436, 1496, 1672, 2584, 2872, 2992, 3344, 3553, 3949, 5168, 5744, 6103, 6821, 7106, 7898, 12206, 13642, 14212, 15796, 24412, 27284, 28424, 31592, 48824, 54568, 56848, 63184, 67133, 75031, 97648, 109136, 115957, 134266, 150062, 231914, 268532, 300124, 463828, 537064, 600248, 927656, 1074128, 1200496, 1275527, 1855312, 2551054, 5102108, 10204216, 20408432]

約数ペア:

[(1, 20408432), (2, 10204216), (4, 5102108), (8, 2551054), (11, 1855312), (16, 1275527), (17, 1200496), (19, 1074128), (22, 927656), (34, 600248), (38, 537064), (44, 463828), (68, 300124), (76, 268532), (88, 231914), (136, 150062), (152, 134266), (176, 115957), (187, 109136), (209, 97648), (272, 75031), (304, 67133), (323, 63184), (359, 56848), (374, 54568), (418, 48824), (646, 31592), (718, 28424), (748, 27284), (836, 24412), (1292, 15796), (1436, 14212), (1496, 13642), (1672, 12206), (2584, 7898), (2872, 7106), (2992, 6821), (3344, 6103), (3553, 5744), (3949, 5168)]