15220940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1$

素因数の和:231

約数の個数: 96

約数和(自身を含む): 39674880

約数和(自身を除く): 24453940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 29, 35, 46, 58, 70, 92, 115, 116, 140, 145, 161, 163, 203, 230, 290, 322, 326, 406, 460, 580, 644, 652, 667, 805, 812, 815, 1015, 1141, 1334, 1610, 1630, 2030, 2282, 2668, 3220, 3260, 3335, 3749, 4060, 4564, 4669, 4727, 5705, 6670, 7498, 9338, 9454, 11410, 13340, 14996, 18676, 18745, 18908, 22820, 23345, 23635, 26243, 33089, 37490, 46690, 47270, 52486, 66178, 74980, 93380, 94540, 104972, 108721, 131215, 132356, 165445, 217442, 262430, 330890, 434884, 524860, 543605, 661780, 761047, 1087210, 1522094, 2174420, 3044188, 3805235, 7610470, 15220940]

約数ペア:

[(1, 15220940), (2, 7610470), (4, 3805235), (5, 3044188), (7, 2174420), (10, 1522094), (14, 1087210), (20, 761047), (23, 661780), (28, 543605), (29, 524860), (35, 434884), (46, 330890), (58, 262430), (70, 217442), (92, 165445), (115, 132356), (116, 131215), (140, 108721), (145, 104972), (161, 94540), (163, 93380), (203, 74980), (230, 66178), (290, 52486), (322, 47270), (326, 46690), (406, 37490), (460, 33089), (580, 26243), (644, 23635), (652, 23345), (667, 22820), (805, 18908), (812, 18745), (815, 18676), (1015, 14996), (1141, 13340), (1334, 11410), (1610, 9454), (1630, 9338), (2030, 7498), (2282, 6670), (2668, 5705), (3220, 4727), (3260, 4669), (3335, 4564), (3749, 4060)]