15625220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3163}}^1$

素因数の和:3204

約数の個数: 48

約数和(自身を含む): 37208640

約数和(自身を除く): 21583420

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 3163, 4940, 6326, 12652, 15815, 31630, 41119, 60097, 63260, 82238, 120194, 164476, 205595, 240388, 300485, 411190, 600970, 781261, 822380, 1201940, 1562522, 3125044, 3906305, 7812610, 15625220]

約数ペア:

[(1, 15625220), (2, 7812610), (4, 3906305), (5, 3125044), (10, 1562522), (13, 1201940), (19, 822380), (20, 781261), (26, 600970), (38, 411190), (52, 300485), (65, 240388), (76, 205595), (95, 164476), (130, 120194), (190, 82238), (247, 63260), (260, 60097), (380, 41119), (494, 31630), (988, 15815), (1235, 12652), (2470, 6326), (3163, 4940)]