8458040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{359}}^1$

素因数の和:420

約数の個数: 64

約数和(自身を含む): 20736000

約数和(自身を除く): 12277960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 62, 76, 95, 124, 152, 155, 190, 248, 310, 359, 380, 589, 620, 718, 760, 1178, 1240, 1436, 1795, 2356, 2872, 2945, 3590, 4712, 5890, 6821, 7180, 11129, 11780, 13642, 14360, 22258, 23560, 27284, 34105, 44516, 54568, 55645, 68210, 89032, 111290, 136420, 211451, 222580, 272840, 422902, 445160, 845804, 1057255, 1691608, 2114510, 4229020, 8458040]

約数ペア:

[(1, 8458040), (2, 4229020), (4, 2114510), (5, 1691608), (8, 1057255), (10, 845804), (19, 445160), (20, 422902), (31, 272840), (38, 222580), (40, 211451), (62, 136420), (76, 111290), (95, 89032), (124, 68210), (152, 55645), (155, 54568), (190, 44516), (248, 34105), (310, 27284), (359, 23560), (380, 22258), (589, 14360), (620, 13642), (718, 11780), (760, 11129), (1178, 7180), (1240, 6821), (1436, 5890), (1795, 4712), (2356, 3590), (2872, 2945)]