1990426620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{5441}}^1$

素因数の和:5540

約数の個数: 192

約数和(自身を含む): 6962973696

約数和(自身を除く): 4972547076

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 67, 70, 78, 84, 91, 105, 130, 134, 140, 156, 182, 195, 201, 210, 260, 268, 273, 335, 364, 390, 402, 420, 455, 469, 546, 670, 780, 804, 871, 910, 938, 1005, 1092, 1340, 1365, 1407, 1742, 1820, 1876, 2010, 2345, 2613, 2730, 2814, 3484, 4020, 4355, 4690, 5226, 5441, 5460, 5628, 6097, 7035, 8710, 9380, 10452, 10882, 12194, 13065, 14070, 16323, 17420, 18291, 21764, 24388, 26130, 27205, 28140, 30485, 32646, 36582, 38087, 52260, 54410, 60970, 65292, 70733, 73164, 76174, 81615, 91455, 108820, 114261, 121940, 141466, 152348, 163230, 182910, 190435, 212199, 228522, 282932, 326460, 353665, 364547, 365820, 380870, 424398, 457044, 495131, 571305, 707330, 729094, 761740, 848796, 990262, 1060995, 1093641, 1142610, 1414660, 1458188, 1485393, 1822735, 1980524, 2121990, 2187282, 2285220, 2475655, 2551829, 2970786, 3645470, 4243980, 4374564, 4739111, 4951310, 5103658, 5468205, 5941572, 7290940, 7426965, 7655487, 9478222, 9902620, 10207316, 10936410, 12759145, 14217333, 14853930, 15310974, 18956444, 21872820, 23695555, 25518290, 28434666, 29707860, 30621948, 33173777, 38277435, 47391110, 51036580, 56869332, 66347554, 71086665, 76554870, 94782220, 99521331, 132695108, 142173330, 153109740, 165868885, 199042662, 284346660, 331737770, 398085324, 497606655, 663475540, 995213310, 1990426620]

約数ペア:

[(1, 1990426620), (2, 995213310), (3, 663475540), (4, 497606655), (5, 398085324), (6, 331737770), (7, 284346660), (10, 199042662), (12, 165868885), (13, 153109740), (14, 142173330), (15, 132695108), (20, 99521331), (21, 94782220), (26, 76554870), (28, 71086665), (30, 66347554), (35, 56869332), (39, 51036580), (42, 47391110), (52, 38277435), (60, 33173777), (65, 30621948), (67, 29707860), (70, 28434666), (78, 25518290), (84, 23695555), (91, 21872820), (105, 18956444), (130, 15310974), (134, 14853930), (140, 14217333), (156, 12759145), (182, 10936410), (195, 10207316), (201, 9902620), (210, 9478222), (260, 7655487), (268, 7426965), (273, 7290940), (335, 5941572), (364, 5468205), (390, 5103658), (402, 4951310), (420, 4739111), (455, 4374564), (469, 4243980), (546, 3645470), (670, 2970786), (780, 2551829), (804, 2475655), (871, 2285220), (910, 2187282), (938, 2121990), (1005, 1980524), (1092, 1822735), (1340, 1485393), (1365, 1458188), (1407, 1414660), (1742, 1142610), (1820, 1093641), (1876, 1060995), (2010, 990262), (2345, 848796), (2613, 761740), (2730, 729094), (2814, 707330), (3484, 571305), (4020, 495131), (4355, 457044), (4690, 424398), (5226, 380870), (5441, 365820), (5460, 364547), (5628, 353665), (6097, 326460), (7035, 282932), (8710, 228522), (9380, 212199), (10452, 190435), (10882, 182910), (12194, 163230), (13065, 152348), (14070, 141466), (16323, 121940), (17420, 114261), (18291, 108820), (21764, 91455), (24388, 81615), (26130, 76174), (27205, 73164), (28140, 70733), (30485, 65292), (32646, 60970), (36582, 54410), (38087, 52260)]