19161875

素因数分解:

$5^4\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:117

約数の個数: 40

約数和(自身を含む): 26391552

約数和(自身を除く): 7229677

約数列:

[1, 5, 23, 25, 31, 43, 115, 125, 155, 215, 575, 625, 713, 775, 989, 1075, 1333, 2875, 3565, 3875, 4945, 5375, 6665, 14375, 17825, 19375, 24725, 26875, 30659, 33325, 89125, 123625, 153295, 166625, 445625, 618125, 766475, 833125, 3832375, 19161875]

約数ペア:

[(1, 19161875), (5, 3832375), (23, 833125), (25, 766475), (31, 618125), (43, 445625), (115, 166625), (125, 153295), (155, 123625), (215, 89125), (575, 33325), (625, 30659), (713, 26875), (775, 24725), (989, 19375), (1075, 17825), (1333, 14375), (2875, 6665), (3565, 5375), (3875, 4945)]