28949720

素因数分解:

$2^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{4793}}^1$

素因数の和:4955

約数の個数: 32

約数和(自身を含む): 65581920

約数和(自身を除く): 36632200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 151, 302, 604, 755, 1208, 1510, 3020, 4793, 6040, 9586, 19172, 23965, 38344, 47930, 95860, 191720, 723743, 1447486, 2894972, 3618715, 5789944, 7237430, 14474860, 28949720]

約数ペア:

[(1, 28949720), (2, 14474860), (4, 7237430), (5, 5789944), (8, 3618715), (10, 2894972), (20, 1447486), (40, 723743), (151, 191720), (302, 95860), (604, 47930), (755, 38344), (1208, 23965), (1510, 19172), (3020, 9586), (4793, 6040)]