28973840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1669}}^1$

素因数の和:1720

約数の個数: 80

約数和(自身を含む): 79518720

約数和(自身を除く): 50544880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1669, 1736, 2170, 2480, 3338, 3472, 4340, 6676, 8345, 8680, 11683, 13352, 16690, 17360, 23366, 26704, 33380, 46732, 51739, 58415, 66760, 93464, 103478, 116830, 133520, 186928, 206956, 233660, 258695, 362173, 413912, 467320, 517390, 724346, 827824, 934640, 1034780, 1448692, 1810865, 2069560, 2897384, 3621730, 4139120, 5794768, 7243460, 14486920, 28973840]

約数ペア:

[(1, 28973840), (2, 14486920), (4, 7243460), (5, 5794768), (7, 4139120), (8, 3621730), (10, 2897384), (14, 2069560), (16, 1810865), (20, 1448692), (28, 1034780), (31, 934640), (35, 827824), (40, 724346), (56, 517390), (62, 467320), (70, 413912), (80, 362173), (112, 258695), (124, 233660), (140, 206956), (155, 186928), (217, 133520), (248, 116830), (280, 103478), (310, 93464), (434, 66760), (496, 58415), (560, 51739), (620, 46732), (868, 33380), (1085, 26704), (1240, 23366), (1669, 17360), (1736, 16690), (2170, 13352), (2480, 11683), (3338, 8680), (3472, 8345), (4340, 6676)]