89987420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{7639}}^1$

素因数の和:7698

約数の個数: 48

約数和(自身を含む): 205363200

約数和(自身を除く): 115375780

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 2356, 2945, 5890, 7639, 11780, 15278, 30556, 38195, 76390, 145141, 152780, 236809, 290282, 473618, 580564, 725705, 947236, 1184045, 1451410, 2368090, 2902820, 4499371, 4736180, 8998742, 17997484, 22496855, 44993710, 89987420]

約数ペア:

[(1, 89987420), (2, 44993710), (4, 22496855), (5, 17997484), (10, 8998742), (19, 4736180), (20, 4499371), (31, 2902820), (38, 2368090), (62, 1451410), (76, 1184045), (95, 947236), (124, 725705), (155, 580564), (190, 473618), (310, 290282), (380, 236809), (589, 152780), (620, 145141), (1178, 76390), (2356, 38195), (2945, 30556), (5890, 15278), (7639, 11780)]