28730800

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:387

約数の個数: 120

約数和(自身を含む): 81677312

約数和(自身を除く): 52946512

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 35, 40, 50, 56, 62, 70, 80, 100, 112, 124, 140, 155, 175, 200, 217, 248, 280, 310, 331, 350, 400, 434, 496, 560, 620, 662, 700, 775, 868, 1085, 1240, 1324, 1400, 1550, 1655, 1736, 2170, 2317, 2480, 2648, 2800, 3100, 3310, 3472, 4340, 4634, 5296, 5425, 6200, 6620, 8275, 8680, 9268, 10261, 10850, 11585, 12400, 13240, 16550, 17360, 18536, 20522, 21700, 23170, 26480, 33100, 37072, 41044, 43400, 46340, 51305, 57925, 66200, 71827, 82088, 86800, 92680, 102610, 115850, 132400, 143654, 164176, 185360, 205220, 231700, 256525, 287308, 359135, 410440, 463400, 513050, 574616, 718270, 820880, 926800, 1026100, 1149232, 1436540, 1795675, 2052200, 2873080, 3591350, 4104400, 5746160, 7182700, 14365400, 28730800]

約数ペア:

[(1, 28730800), (2, 14365400), (4, 7182700), (5, 5746160), (7, 4104400), (8, 3591350), (10, 2873080), (14, 2052200), (16, 1795675), (20, 1436540), (25, 1149232), (28, 1026100), (31, 926800), (35, 820880), (40, 718270), (50, 574616), (56, 513050), (62, 463400), (70, 410440), (80, 359135), (100, 287308), (112, 256525), (124, 231700), (140, 205220), (155, 185360), (175, 164176), (200, 143654), (217, 132400), (248, 115850), (280, 102610), (310, 92680), (331, 86800), (350, 82088), (400, 71827), (434, 66200), (496, 57925), (560, 51305), (620, 46340), (662, 43400), (700, 41044), (775, 37072), (868, 33100), (1085, 26480), (1240, 23170), (1324, 21700), (1400, 20522), (1550, 18536), (1655, 17360), (1736, 16550), (2170, 13240), (2317, 12400), (2480, 11585), (2648, 10850), (2800, 10261), (3100, 9268), (3310, 8680), (3472, 8275), (4340, 6620), (4634, 6200), (5296, 5425)]