28895720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3329}}^1$

素因数の和:3378

約数の個数: 64

約数和(自身を含む): 76723200

約数和(自身を除く): 47827480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 3329, 4340, 6658, 8680, 13316, 16645, 23303, 26632, 33290, 46606, 66580, 93212, 103199, 116515, 133160, 186424, 206398, 233030, 412796, 466060, 515995, 722393, 825592, 932120, 1031990, 1444786, 2063980, 2889572, 3611965, 4127960, 5779144, 7223930, 14447860, 28895720]

約数ペア:

[(1, 28895720), (2, 14447860), (4, 7223930), (5, 5779144), (7, 4127960), (8, 3611965), (10, 2889572), (14, 2063980), (20, 1444786), (28, 1031990), (31, 932120), (35, 825592), (40, 722393), (56, 515995), (62, 466060), (70, 412796), (124, 233030), (140, 206398), (155, 186424), (217, 133160), (248, 116515), (280, 103199), (310, 93212), (434, 66580), (620, 46606), (868, 33290), (1085, 26632), (1240, 23303), (1736, 16645), (2170, 13316), (3329, 8680), (4340, 6658)]