19557475

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 29855232

約数和(自身を除く): 10297757

約数列:

[1, 5, 7, 23, 25, 35, 43, 113, 115, 161, 175, 215, 301, 565, 575, 791, 805, 989, 1075, 1505, 2599, 2825, 3955, 4025, 4859, 4945, 6923, 7525, 12995, 18193, 19775, 24295, 24725, 34013, 34615, 64975, 90965, 111757, 121475, 170065, 173075, 454825, 558785, 782299, 850325, 2793925, 3911495, 19557475]

約数ペア:

[(1, 19557475), (5, 3911495), (7, 2793925), (23, 850325), (25, 782299), (35, 558785), (43, 454825), (113, 173075), (115, 170065), (161, 121475), (175, 111757), (215, 90965), (301, 64975), (565, 34615), (575, 34013), (791, 24725), (805, 24295), (989, 19775), (1075, 18193), (1505, 12995), (2599, 7525), (2825, 6923), (3955, 4945), (4025, 4859)]