8988140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:175

約数の個数: 96

約数和(自身を含む): 23654400

約数和(自身を除く): 14666260

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 31, 35, 38, 62, 70, 76, 95, 109, 124, 133, 140, 155, 190, 217, 218, 266, 310, 380, 434, 436, 532, 545, 589, 620, 665, 763, 868, 1085, 1090, 1178, 1330, 1526, 2071, 2170, 2180, 2356, 2660, 2945, 3052, 3379, 3815, 4123, 4142, 4340, 5890, 6758, 7630, 8246, 8284, 10355, 11780, 13516, 14497, 15260, 16492, 16895, 20615, 20710, 23653, 28994, 33790, 41230, 41420, 47306, 57988, 64201, 67580, 72485, 82460, 94612, 118265, 128402, 144970, 236530, 256804, 289940, 321005, 449407, 473060, 642010, 898814, 1284020, 1797628, 2247035, 4494070, 8988140]

約数ペア:

[(1, 8988140), (2, 4494070), (4, 2247035), (5, 1797628), (7, 1284020), (10, 898814), (14, 642010), (19, 473060), (20, 449407), (28, 321005), (31, 289940), (35, 256804), (38, 236530), (62, 144970), (70, 128402), (76, 118265), (95, 94612), (109, 82460), (124, 72485), (133, 67580), (140, 64201), (155, 57988), (190, 47306), (217, 41420), (218, 41230), (266, 33790), (310, 28994), (380, 23653), (434, 20710), (436, 20615), (532, 16895), (545, 16492), (589, 15260), (620, 14497), (665, 13516), (763, 11780), (868, 10355), (1085, 8284), (1090, 8246), (1178, 7630), (1330, 6758), (1526, 5890), (2071, 4340), (2170, 4142), (2180, 4123), (2356, 3815), (2660, 3379), (2945, 3052)]