19910370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:391

約数の個数: 64

約数和(自身を含む): 50135040

約数和(自身を除く): 30224670

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 79, 93, 155, 158, 186, 237, 271, 310, 395, 465, 474, 542, 790, 813, 930, 1185, 1355, 1626, 2370, 2449, 2710, 4065, 4898, 7347, 8130, 8401, 12245, 14694, 16802, 21409, 24490, 25203, 36735, 42005, 42818, 50406, 64227, 73470, 84010, 107045, 126015, 128454, 214090, 252030, 321135, 642270, 663679, 1327358, 1991037, 3318395, 3982074, 6636790, 9955185, 19910370]

約数ペア:

[(1, 19910370), (2, 9955185), (3, 6636790), (5, 3982074), (6, 3318395), (10, 1991037), (15, 1327358), (30, 663679), (31, 642270), (62, 321135), (79, 252030), (93, 214090), (155, 128454), (158, 126015), (186, 107045), (237, 84010), (271, 73470), (310, 64227), (395, 50406), (465, 42818), (474, 42005), (542, 36735), (790, 25203), (813, 24490), (930, 21409), (1185, 16802), (1355, 14694), (1626, 12245), (2370, 8401), (2449, 8130), (2710, 7347), (4065, 4898)]