31881528

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^2$

素因数の和:158

約数の個数: 144

約数和(自身を含む): 106226640

約数和(自身を除く): 74345112

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 17, 18, 21, 24, 28, 34, 36, 42, 51, 56, 61, 63, 68, 72, 84, 102, 119, 122, 126, 136, 153, 168, 183, 204, 238, 244, 252, 306, 357, 366, 408, 427, 476, 488, 504, 549, 612, 714, 732, 854, 952, 1037, 1071, 1098, 1224, 1281, 1428, 1464, 1708, 2074, 2142, 2196, 2562, 2856, 3111, 3416, 3721, 3843, 4148, 4284, 4392, 5124, 6222, 7259, 7442, 7686, 8296, 8568, 9333, 10248, 11163, 12444, 14518, 14884, 15372, 18666, 21777, 22326, 24888, 26047, 29036, 29768, 30744, 33489, 37332, 43554, 44652, 52094, 58072, 63257, 65331, 66978, 74664, 78141, 87108, 89304, 104188, 126514, 130662, 133956, 156282, 174216, 189771, 208376, 234423, 253028, 261324, 267912, 312564, 379542, 442799, 468846, 506056, 522648, 569313, 625128, 759084, 885598, 937692, 1138626, 1328397, 1518168, 1771196, 1875384, 2277252, 2656794, 3542392, 3985191, 4554504, 5313588, 7970382, 10627176, 15940764, 31881528]

約数ペア:

[(1, 31881528), (2, 15940764), (3, 10627176), (4, 7970382), (6, 5313588), (7, 4554504), (8, 3985191), (9, 3542392), (12, 2656794), (14, 2277252), (17, 1875384), (18, 1771196), (21, 1518168), (24, 1328397), (28, 1138626), (34, 937692), (36, 885598), (42, 759084), (51, 625128), (56, 569313), (61, 522648), (63, 506056), (68, 468846), (72, 442799), (84, 379542), (102, 312564), (119, 267912), (122, 261324), (126, 253028), (136, 234423), (153, 208376), (168, 189771), (183, 174216), (204, 156282), (238, 133956), (244, 130662), (252, 126514), (306, 104188), (357, 89304), (366, 87108), (408, 78141), (427, 74664), (476, 66978), (488, 65331), (504, 63257), (549, 58072), (612, 52094), (714, 44652), (732, 43554), (854, 37332), (952, 33489), (1037, 30744), (1071, 29768), (1098, 29036), (1224, 26047), (1281, 24888), (1428, 22326), (1464, 21777), (1708, 18666), (2074, 15372), (2142, 14884), (2196, 14518), (2562, 12444), (2856, 11163), (3111, 10248), (3416, 9333), (3721, 8568), (3843, 8296), (4148, 7686), (4284, 7442), (4392, 7259), (5124, 6222)]