78720012

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{569}}^1$

素因数の和:653

約数の個数: 120

約数和(自身を含む): 239463840

約数和(自身を除く): 160743828

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 61, 63, 81, 84, 108, 122, 126, 162, 183, 189, 244, 252, 324, 366, 378, 427, 549, 567, 569, 732, 756, 854, 1098, 1134, 1138, 1281, 1647, 1707, 1708, 2196, 2268, 2276, 2562, 3294, 3414, 3843, 3983, 4941, 5121, 5124, 6588, 6828, 7686, 7966, 9882, 10242, 11529, 11949, 15363, 15372, 15932, 19764, 20484, 23058, 23898, 30726, 34587, 34709, 35847, 46089, 46116, 47796, 61452, 69174, 69418, 71694, 92178, 104127, 107541, 138348, 138836, 143388, 184356, 208254, 215082, 242963, 312381, 322623, 416508, 430164, 485926, 624762, 645246, 728889, 937143, 971852, 1249524, 1290492, 1457778, 1874286, 2186667, 2811429, 2915556, 3748572, 4373334, 5622858, 6560001, 8746668, 11245716, 13120002, 19680003, 26240004, 39360006, 78720012]

約数ペア:

[(1, 78720012), (2, 39360006), (3, 26240004), (4, 19680003), (6, 13120002), (7, 11245716), (9, 8746668), (12, 6560001), (14, 5622858), (18, 4373334), (21, 3748572), (27, 2915556), (28, 2811429), (36, 2186667), (42, 1874286), (54, 1457778), (61, 1290492), (63, 1249524), (81, 971852), (84, 937143), (108, 728889), (122, 645246), (126, 624762), (162, 485926), (183, 430164), (189, 416508), (244, 322623), (252, 312381), (324, 242963), (366, 215082), (378, 208254), (427, 184356), (549, 143388), (567, 138836), (569, 138348), (732, 107541), (756, 104127), (854, 92178), (1098, 71694), (1134, 69418), (1138, 69174), (1281, 61452), (1647, 47796), (1707, 46116), (1708, 46089), (2196, 35847), (2268, 34709), (2276, 34587), (2562, 30726), (3294, 23898), (3414, 23058), (3843, 20484), (3983, 19764), (4941, 15932), (5121, 15372), (5124, 15363), (6588, 11949), (6828, 11529), (7686, 10242), (7966, 9882)]