20556432

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:245

約数の個数: 120

約数和(自身を含む): 63190400

約数和(自身を除く): 42633968

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 79, 104, 117, 139, 144, 156, 158, 208, 234, 237, 278, 312, 316, 417, 468, 474, 556, 624, 632, 711, 834, 936, 948, 1027, 1112, 1251, 1264, 1422, 1668, 1807, 1872, 1896, 2054, 2224, 2502, 2844, 3081, 3336, 3614, 3792, 4108, 5004, 5421, 5688, 6162, 6672, 7228, 8216, 9243, 10008, 10842, 10981, 11376, 12324, 14456, 16263, 16432, 18486, 20016, 21684, 21962, 24648, 28912, 32526, 32943, 36972, 43368, 43924, 49296, 65052, 65886, 73944, 86736, 87848, 98829, 130104, 131772, 142753, 147888, 175696, 197658, 260208, 263544, 285506, 395316, 428259, 527088, 571012, 790632, 856518, 1142024, 1284777, 1581264, 1713036, 2284048, 2569554, 3426072, 5139108, 6852144, 10278216, 20556432]

約数ペア:

[(1, 20556432), (2, 10278216), (3, 6852144), (4, 5139108), (6, 3426072), (8, 2569554), (9, 2284048), (12, 1713036), (13, 1581264), (16, 1284777), (18, 1142024), (24, 856518), (26, 790632), (36, 571012), (39, 527088), (48, 428259), (52, 395316), (72, 285506), (78, 263544), (79, 260208), (104, 197658), (117, 175696), (139, 147888), (144, 142753), (156, 131772), (158, 130104), (208, 98829), (234, 87848), (237, 86736), (278, 73944), (312, 65886), (316, 65052), (417, 49296), (468, 43924), (474, 43368), (556, 36972), (624, 32943), (632, 32526), (711, 28912), (834, 24648), (936, 21962), (948, 21684), (1027, 20016), (1112, 18486), (1251, 16432), (1264, 16263), (1422, 14456), (1668, 12324), (1807, 11376), (1872, 10981), (1896, 10842), (2054, 10008), (2224, 9243), (2502, 8216), (2844, 7228), (3081, 6672), (3336, 6162), (3614, 5688), (3792, 5421), (4108, 5004)]