1639403220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{15803}}^1$

素因数の和:15854

約数の個数: 192

約数和(自身を含む): 5947361280

約数和(自身を除く): 4307958060

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 19, 20, 21, 26, 28, 30, 35, 38, 39, 42, 52, 57, 60, 65, 70, 76, 78, 84, 91, 95, 105, 114, 130, 133, 140, 156, 182, 190, 195, 210, 228, 247, 260, 266, 273, 285, 364, 380, 390, 399, 420, 455, 494, 532, 546, 570, 665, 741, 780, 798, 910, 988, 1092, 1140, 1235, 1330, 1365, 1482, 1596, 1729, 1820, 1995, 2470, 2660, 2730, 2964, 3458, 3705, 3990, 4940, 5187, 5460, 6916, 7410, 7980, 8645, 10374, 14820, 15803, 17290, 20748, 25935, 31606, 34580, 47409, 51870, 63212, 79015, 94818, 103740, 110621, 158030, 189636, 205439, 221242, 237045, 300257, 316060, 331863, 410878, 442484, 474090, 553105, 600514, 616317, 663726, 821756, 900771, 948180, 1027195, 1106210, 1201028, 1232634, 1327452, 1438073, 1501285, 1659315, 1801542, 2054390, 2101799, 2212420, 2465268, 2876146, 3002570, 3081585, 3318630, 3603084, 3903341, 4108780, 4203598, 4314219, 4503855, 5752292, 6005140, 6163170, 6305397, 6637260, 7190365, 7806682, 8407196, 8628438, 9007710, 10508995, 11710023, 12326340, 12610794, 14380730, 15613364, 17256876, 18015420, 19516705, 21017990, 21571095, 23420046, 25221588, 27323387, 28761460, 31526985, 39033410, 42035980, 43142190, 46840092, 54646774, 58550115, 63053970, 78066820, 81970161, 86284380, 109293548, 117100230, 126107940, 136616935, 163940322, 234200460, 273233870, 327880644, 409850805, 546467740, 819701610, 1639403220]

約数ペア:

[(1, 1639403220), (2, 819701610), (3, 546467740), (4, 409850805), (5, 327880644), (6, 273233870), (7, 234200460), (10, 163940322), (12, 136616935), (13, 126107940), (14, 117100230), (15, 109293548), (19, 86284380), (20, 81970161), (21, 78066820), (26, 63053970), (28, 58550115), (30, 54646774), (35, 46840092), (38, 43142190), (39, 42035980), (42, 39033410), (52, 31526985), (57, 28761460), (60, 27323387), (65, 25221588), (70, 23420046), (76, 21571095), (78, 21017990), (84, 19516705), (91, 18015420), (95, 17256876), (105, 15613364), (114, 14380730), (130, 12610794), (133, 12326340), (140, 11710023), (156, 10508995), (182, 9007710), (190, 8628438), (195, 8407196), (210, 7806682), (228, 7190365), (247, 6637260), (260, 6305397), (266, 6163170), (273, 6005140), (285, 5752292), (364, 4503855), (380, 4314219), (390, 4203598), (399, 4108780), (420, 3903341), (455, 3603084), (494, 3318630), (532, 3081585), (546, 3002570), (570, 2876146), (665, 2465268), (741, 2212420), (780, 2101799), (798, 2054390), (910, 1801542), (988, 1659315), (1092, 1501285), (1140, 1438073), (1235, 1327452), (1330, 1232634), (1365, 1201028), (1482, 1106210), (1596, 1027195), (1729, 948180), (1820, 900771), (1995, 821756), (2470, 663726), (2660, 616317), (2730, 600514), (2964, 553105), (3458, 474090), (3705, 442484), (3990, 410878), (4940, 331863), (5187, 316060), (5460, 300257), (6916, 237045), (7410, 221242), (7980, 205439), (8645, 189636), (10374, 158030), (14820, 110621), (15803, 103740), (17290, 94818), (20748, 79015), (25935, 63212), (31606, 51870), (34580, 47409)]