28636340

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{509}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 62974800

約数和(自身を除く): 34338460

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 97, 116, 145, 194, 290, 388, 485, 509, 580, 970, 1018, 1940, 2036, 2545, 2813, 5090, 5626, 10180, 11252, 14065, 14761, 28130, 29522, 49373, 56260, 59044, 73805, 98746, 147610, 197492, 246865, 295220, 493730, 987460, 1431817, 2863634, 5727268, 7159085, 14318170, 28636340]

約数ペア:

[(1, 28636340), (2, 14318170), (4, 7159085), (5, 5727268), (10, 2863634), (20, 1431817), (29, 987460), (58, 493730), (97, 295220), (116, 246865), (145, 197492), (194, 147610), (290, 98746), (388, 73805), (485, 59044), (509, 56260), (580, 49373), (970, 29522), (1018, 28130), (1940, 14761), (2036, 14065), (2545, 11252), (2813, 10180), (5090, 5626)]