15901236875

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{2099}}^1$

素因数の和:2190

約数の個数: 80

約数和(自身を含む): 22672742400

約数和(自身を除く): 6771505525

約数列:

[1, 5, 17, 23, 25, 31, 85, 115, 125, 155, 391, 425, 527, 575, 625, 713, 775, 1955, 2099, 2125, 2635, 2875, 3565, 3875, 9775, 10495, 10625, 12121, 13175, 14375, 17825, 19375, 35683, 48277, 48875, 52475, 60605, 65069, 65875, 89125, 178415, 241385, 244375, 262375, 303025, 325345, 329375, 445625, 820709, 892075, 1106173, 1206925, 1311875, 1496587, 1515125, 1626725, 4103545, 4460375, 5530865, 6034625, 7482935, 7575625, 8133625, 20517725, 22301875, 25441979, 27654325, 30173125, 37414675, 40668125, 102588625, 127209895, 138271625, 187073375, 512943125, 636049475, 691358125, 935366875, 3180247375, 15901236875]

約数ペア:

[(1, 15901236875), (5, 3180247375), (17, 935366875), (23, 691358125), (25, 636049475), (31, 512943125), (85, 187073375), (115, 138271625), (125, 127209895), (155, 102588625), (391, 40668125), (425, 37414675), (527, 30173125), (575, 27654325), (625, 25441979), (713, 22301875), (775, 20517725), (1955, 8133625), (2099, 7575625), (2125, 7482935), (2635, 6034625), (2875, 5530865), (3565, 4460375), (3875, 4103545), (9775, 1626725), (10495, 1515125), (10625, 1496587), (12121, 1311875), (13175, 1206925), (14375, 1106173), (17825, 892075), (19375, 820709), (35683, 445625), (48277, 329375), (48875, 325345), (52475, 303025), (60605, 262375), (65069, 244375), (65875, 241385), (89125, 178415)]