20163930875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1\times {\mathrm{1327}}^1$

素因数の和:1653

約数の個数: 64

約数和(自身を含む): 28221253632

約数和(自身を除く): 8057322757

約数列:

[1, 5, 11, 25, 43, 55, 125, 215, 257, 275, 473, 1075, 1285, 1327, 1375, 2365, 2827, 5375, 6425, 6635, 11051, 11825, 14135, 14597, 32125, 33175, 55255, 57061, 59125, 70675, 72985, 121561, 165875, 276275, 285305, 341039, 353375, 364925, 607805, 627671, 1381375, 1426525, 1705195, 1824625, 3039025, 3138355, 3751429, 7132625, 8525975, 14664677, 15195125, 15691775, 18757145, 42629875, 73323385, 78458875, 93785725, 161311447, 366616925, 468928625, 806557235, 1833084625, 4032786175, 20163930875]

約数ペア:

[(1, 20163930875), (5, 4032786175), (11, 1833084625), (25, 806557235), (43, 468928625), (55, 366616925), (125, 161311447), (215, 93785725), (257, 78458875), (275, 73323385), (473, 42629875), (1075, 18757145), (1285, 15691775), (1327, 15195125), (1375, 14664677), (2365, 8525975), (2827, 7132625), (5375, 3751429), (6425, 3138355), (6635, 3039025), (11051, 1824625), (11825, 1705195), (14135, 1426525), (14597, 1381375), (32125, 627671), (33175, 607805), (55255, 364925), (57061, 353375), (59125, 341039), (70675, 285305), (72985, 276275), (121561, 165875)]