28857010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1669}}^1$

素因数の和:1715

約数の個数: 64

約数和(自身を含む): 67334400

約数和(自身を除く): 38477390

約数列:

[1, 2, 5, 7, 10, 13, 14, 19, 26, 35, 38, 65, 70, 91, 95, 130, 133, 182, 190, 247, 266, 455, 494, 665, 910, 1235, 1330, 1669, 1729, 2470, 3338, 3458, 8345, 8645, 11683, 16690, 17290, 21697, 23366, 31711, 43394, 58415, 63422, 108485, 116830, 151879, 158555, 216970, 221977, 303758, 317110, 412243, 443954, 759395, 824486, 1109885, 1518790, 2061215, 2219770, 2885701, 4122430, 5771402, 14428505, 28857010]

約数ペア:

[(1, 28857010), (2, 14428505), (5, 5771402), (7, 4122430), (10, 2885701), (13, 2219770), (14, 2061215), (19, 1518790), (26, 1109885), (35, 824486), (38, 759395), (65, 443954), (70, 412243), (91, 317110), (95, 303758), (130, 221977), (133, 216970), (182, 158555), (190, 151879), (247, 116830), (266, 108485), (455, 63422), (494, 58415), (665, 43394), (910, 31711), (1235, 23366), (1330, 21697), (1669, 17290), (1729, 16690), (2470, 11683), (3338, 8645), (3458, 8345)]