15720410

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 32762880

約数和(自身を除く): 17042470

約数列:

[1, 2, 5, 10, 17, 19, 31, 34, 38, 62, 85, 95, 155, 157, 170, 190, 310, 314, 323, 527, 589, 646, 785, 1054, 1178, 1570, 1615, 2635, 2669, 2945, 2983, 3230, 4867, 5270, 5338, 5890, 5966, 9734, 10013, 13345, 14915, 20026, 24335, 26690, 29830, 48670, 50065, 50711, 82739, 92473, 100130, 101422, 165478, 184946, 253555, 413695, 462365, 507110, 827390, 924730, 1572041, 3144082, 7860205, 15720410]

約数ペア:

[(1, 15720410), (2, 7860205), (5, 3144082), (10, 1572041), (17, 924730), (19, 827390), (31, 507110), (34, 462365), (38, 413695), (62, 253555), (85, 184946), (95, 165478), (155, 101422), (157, 100130), (170, 92473), (190, 82739), (310, 50711), (314, 50065), (323, 48670), (527, 29830), (589, 26690), (646, 24335), (785, 20026), (1054, 14915), (1178, 13345), (1570, 10013), (1615, 9734), (2635, 5966), (2669, 5890), (2945, 5338), (2983, 5270), (3230, 4867)]