18914625

素因数分解:

$3^2\times 5^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:104

約数の個数: 96

約数和(自身を含む): 38548224

約数和(自身を除く): 19633599

約数列:

[1, 3, 5, 9, 15, 17, 23, 25, 43, 45, 51, 69, 75, 85, 115, 125, 129, 153, 207, 215, 225, 255, 345, 375, 387, 391, 425, 575, 645, 731, 765, 989, 1035, 1075, 1125, 1173, 1275, 1725, 1935, 1955, 2125, 2193, 2875, 2967, 3225, 3519, 3655, 3825, 4945, 5175, 5375, 5865, 6375, 6579, 8625, 8901, 9675, 9775, 10965, 14835, 16125, 16813, 17595, 18275, 19125, 24725, 25875, 29325, 32895, 44505, 48375, 48875, 50439, 54825, 74175, 84065, 87975, 91375, 123625, 146625, 151317, 164475, 222525, 252195, 274125, 370875, 420325, 439875, 756585, 822375, 1112625, 1260975, 2101625, 3782925, 6304875, 18914625]

約数ペア:

[(1, 18914625), (3, 6304875), (5, 3782925), (9, 2101625), (15, 1260975), (17, 1112625), (23, 822375), (25, 756585), (43, 439875), (45, 420325), (51, 370875), (69, 274125), (75, 252195), (85, 222525), (115, 164475), (125, 151317), (129, 146625), (153, 123625), (207, 91375), (215, 87975), (225, 84065), (255, 74175), (345, 54825), (375, 50439), (387, 48875), (391, 48375), (425, 44505), (575, 32895), (645, 29325), (731, 25875), (765, 24725), (989, 19125), (1035, 18275), (1075, 17595), (1125, 16813), (1173, 16125), (1275, 14835), (1725, 10965), (1935, 9775), (1955, 9675), (2125, 8901), (2193, 8625), (2875, 6579), (2967, 6375), (3225, 5865), (3519, 5375), (3655, 5175), (3825, 4945)]