201342520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1\times {\mathrm{409}}^1$

素因数の和:848

約数の個数: 64

約数和(自身を含む): 469958400

約数和(自身を除く): 268615880

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 397, 409, 620, 794, 818, 1240, 1588, 1636, 1985, 2045, 3176, 3272, 3970, 4090, 7940, 8180, 12307, 12679, 15880, 16360, 24614, 25358, 49228, 50716, 61535, 63395, 98456, 101432, 123070, 126790, 162373, 246140, 253580, 324746, 492280, 507160, 649492, 811865, 1298984, 1623730, 3247460, 5033563, 6494920, 10067126, 20134252, 25167815, 40268504, 50335630, 100671260, 201342520]

約数ペア:

[(1, 201342520), (2, 100671260), (4, 50335630), (5, 40268504), (8, 25167815), (10, 20134252), (20, 10067126), (31, 6494920), (40, 5033563), (62, 3247460), (124, 1623730), (155, 1298984), (248, 811865), (310, 649492), (397, 507160), (409, 492280), (620, 324746), (794, 253580), (818, 246140), (1240, 162373), (1588, 126790), (1636, 123070), (1985, 101432), (2045, 98456), (3176, 63395), (3272, 61535), (3970, 50716), (4090, 49228), (7940, 25358), (8180, 24614), (12307, 16360), (12679, 15880)]