1581840

素因数分解:

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

素因数の和:58

約数の個数: 120

約数和(自身を含む): 5754840

約数和(自身を除く): 4173000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 104, 117, 120, 130, 144, 156, 169, 180, 195, 208, 234, 240, 260, 312, 338, 360, 390, 468, 507, 520, 585, 624, 676, 720, 780, 845, 936, 1014, 1040, 1170, 1352, 1521, 1560, 1690, 1872, 2028, 2197, 2340, 2535, 2704, 3042, 3120, 3380, 4056, 4394, 4680, 5070, 6084, 6591, 6760, 7605, 8112, 8788, 9360, 10140, 10985, 12168, 13182, 13520, 15210, 17576, 19773, 20280, 21970, 24336, 26364, 30420, 32955, 35152, 39546, 40560, 43940, 52728, 60840, 65910, 79092, 87880, 98865, 105456, 121680, 131820, 158184, 175760, 197730, 263640, 316368, 395460, 527280, 790920, 1581840]

約数ペア:

[(1, 1581840), (2, 790920), (3, 527280), (4, 395460), (5, 316368), (6, 263640), (8, 197730), (9, 175760), (10, 158184), (12, 131820), (13, 121680), (15, 105456), (16, 98865), (18, 87880), (20, 79092), (24, 65910), (26, 60840), (30, 52728), (36, 43940), (39, 40560), (40, 39546), (45, 35152), (48, 32955), (52, 30420), (60, 26364), (65, 24336), (72, 21970), (78, 20280), (80, 19773), (90, 17576), (104, 15210), (117, 13520), (120, 13182), (130, 12168), (144, 10985), (156, 10140), (169, 9360), (180, 8788), (195, 8112), (208, 7605), (234, 6760), (240, 6591), (260, 6084), (312, 5070), (338, 4680), (360, 4394), (390, 4056), (468, 3380), (507, 3120), (520, 3042), (585, 2704), (624, 2535), (676, 2340), (720, 2197), (780, 2028), (845, 1872), (936, 1690), (1014, 1560), (1040, 1521), (1170, 1352)]