64641420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{461}}^1$

素因数の和:536

約数の個数: 144

約数和(自身を含む): 211891680

約数和(自身を除く): 147250260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 41, 45, 57, 60, 76, 82, 90, 95, 114, 123, 164, 171, 180, 190, 205, 228, 246, 285, 342, 369, 380, 410, 461, 492, 570, 615, 684, 738, 779, 820, 855, 922, 1140, 1230, 1383, 1476, 1558, 1710, 1844, 1845, 2305, 2337, 2460, 2766, 3116, 3420, 3690, 3895, 4149, 4610, 4674, 5532, 6915, 7011, 7380, 7790, 8298, 8759, 9220, 9348, 11685, 13830, 14022, 15580, 16596, 17518, 18901, 20745, 23370, 26277, 27660, 28044, 35036, 35055, 37802, 41490, 43795, 46740, 52554, 56703, 70110, 75604, 78831, 82980, 87590, 94505, 105108, 113406, 131385, 140220, 157662, 170109, 175180, 189010, 226812, 262770, 283515, 315324, 340218, 359119, 378020, 394155, 525540, 567030, 680436, 718238, 788310, 850545, 1077357, 1134060, 1436476, 1576620, 1701090, 1795595, 2154714, 3232071, 3402180, 3591190, 4309428, 5386785, 6464142, 7182380, 10773570, 12928284, 16160355, 21547140, 32320710, 64641420]

約数ペア:

[(1, 64641420), (2, 32320710), (3, 21547140), (4, 16160355), (5, 12928284), (6, 10773570), (9, 7182380), (10, 6464142), (12, 5386785), (15, 4309428), (18, 3591190), (19, 3402180), (20, 3232071), (30, 2154714), (36, 1795595), (38, 1701090), (41, 1576620), (45, 1436476), (57, 1134060), (60, 1077357), (76, 850545), (82, 788310), (90, 718238), (95, 680436), (114, 567030), (123, 525540), (164, 394155), (171, 378020), (180, 359119), (190, 340218), (205, 315324), (228, 283515), (246, 262770), (285, 226812), (342, 189010), (369, 175180), (380, 170109), (410, 157662), (461, 140220), (492, 131385), (570, 113406), (615, 105108), (684, 94505), (738, 87590), (779, 82980), (820, 78831), (855, 75604), (922, 70110), (1140, 56703), (1230, 52554), (1383, 46740), (1476, 43795), (1558, 41490), (1710, 37802), (1844, 35055), (1845, 35036), (2305, 28044), (2337, 27660), (2460, 26277), (2766, 23370), (3116, 20745), (3420, 18901), (3690, 17518), (3895, 16596), (4149, 15580), (4610, 14022), (4674, 13830), (5532, 11685), (6915, 9348), (7011, 9220), (7380, 8759), (7790, 8298)]