39985400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{13}}^4$

素因数の和:75

約数の個数: 120

約数和(自身を含む): 115100520

約数和(自身を除く): 75115120

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 25, 26, 28, 35, 40, 50, 52, 56, 65, 70, 91, 100, 104, 130, 140, 169, 175, 182, 200, 260, 280, 325, 338, 350, 364, 455, 520, 650, 676, 700, 728, 845, 910, 1183, 1300, 1352, 1400, 1690, 1820, 2197, 2275, 2366, 2600, 3380, 3640, 4225, 4394, 4550, 4732, 5915, 6760, 8450, 8788, 9100, 9464, 10985, 11830, 15379, 16900, 17576, 18200, 21970, 23660, 28561, 29575, 30758, 33800, 43940, 47320, 54925, 57122, 59150, 61516, 76895, 87880, 109850, 114244, 118300, 123032, 142805, 153790, 199927, 219700, 228488, 236600, 285610, 307580, 384475, 399854, 439400, 571220, 615160, 714025, 768950, 799708, 999635, 1142440, 1428050, 1537900, 1599416, 1999270, 2856100, 3075800, 3998540, 4998175, 5712200, 7997080, 9996350, 19992700, 39985400]

約数ペア:

[(1, 39985400), (2, 19992700), (4, 9996350), (5, 7997080), (7, 5712200), (8, 4998175), (10, 3998540), (13, 3075800), (14, 2856100), (20, 1999270), (25, 1599416), (26, 1537900), (28, 1428050), (35, 1142440), (40, 999635), (50, 799708), (52, 768950), (56, 714025), (65, 615160), (70, 571220), (91, 439400), (100, 399854), (104, 384475), (130, 307580), (140, 285610), (169, 236600), (175, 228488), (182, 219700), (200, 199927), (260, 153790), (280, 142805), (325, 123032), (338, 118300), (350, 114244), (364, 109850), (455, 87880), (520, 76895), (650, 61516), (676, 59150), (700, 57122), (728, 54925), (845, 47320), (910, 43940), (1183, 33800), (1300, 30758), (1352, 29575), (1400, 28561), (1690, 23660), (1820, 21970), (2197, 18200), (2275, 17576), (2366, 16900), (2600, 15379), (3380, 11830), (3640, 10985), (4225, 9464), (4394, 9100), (4550, 8788), (4732, 8450), (5915, 6760)]