19870750

素因数分解:

$2^1\times 5^3\times {\mathrm{61}}^1\times {\mathrm{1303}}^1$

素因数の和:1381

約数の個数: 32

約数和(自身を含む): 37836864

約数和(自身を除く): 17966114

約数列:

[1, 2, 5, 10, 25, 50, 61, 122, 125, 250, 305, 610, 1303, 1525, 2606, 3050, 6515, 7625, 13030, 15250, 32575, 65150, 79483, 158966, 162875, 325750, 397415, 794830, 1987075, 3974150, 9935375, 19870750]

約数ペア:

[(1, 19870750), (2, 9935375), (5, 3974150), (10, 1987075), (25, 794830), (50, 397415), (61, 325750), (122, 162875), (125, 158966), (250, 79483), (305, 65150), (610, 32575), (1303, 15250), (1525, 13030), (2606, 7625), (3050, 6515)]