20870436

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{383}}^1$

素因数の和:648

約数の個数: 48

約数和(自身を含む): 51609600

約数和(自身を除く): 30739164

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228, 239, 383, 478, 717, 766, 956, 1149, 1434, 1532, 2298, 2868, 4541, 4596, 7277, 9082, 13623, 14554, 18164, 21831, 27246, 29108, 43662, 54492, 87324, 91537, 183074, 274611, 366148, 549222, 1098444, 1739203, 3478406, 5217609, 6956812, 10435218, 20870436]

約数ペア:

[(1, 20870436), (2, 10435218), (3, 6956812), (4, 5217609), (6, 3478406), (12, 1739203), (19, 1098444), (38, 549222), (57, 366148), (76, 274611), (114, 183074), (228, 91537), (239, 87324), (383, 54492), (478, 43662), (717, 29108), (766, 27246), (956, 21831), (1149, 18164), (1434, 14554), (1532, 13623), (2298, 9082), (2868, 7277), (4541, 4596)]