81120872

素因数分解:

$2^3\times 7^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:128

約数の個数: 128

約数和(自身を含む): 196992000

約数和(自身を除く): 115871128

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 37, 47, 49, 56, 68, 74, 94, 98, 119, 136, 148, 188, 196, 238, 259, 296, 329, 343, 376, 392, 476, 518, 629, 658, 686, 799, 833, 952, 1036, 1258, 1316, 1372, 1598, 1666, 1739, 1813, 2072, 2303, 2516, 2632, 2744, 3196, 3332, 3478, 3626, 4403, 4606, 5032, 5593, 5831, 6392, 6664, 6956, 7252, 8806, 9212, 11186, 11662, 12173, 12691, 13912, 14504, 16121, 17612, 18424, 22372, 23324, 24346, 25382, 29563, 30821, 32242, 35224, 39151, 44744, 46648, 48692, 50764, 59126, 61642, 64484, 78302, 85211, 97384, 101528, 118252, 123284, 128968, 156604, 170422, 206941, 215747, 236504, 246568, 274057, 313208, 340844, 413882, 431494, 548114, 596477, 681688, 827764, 862988, 1096228, 1192954, 1448587, 1655528, 1725976, 2192456, 2385908, 2897174, 4771816, 5794348, 10140109, 11588696, 20280218, 40560436, 81120872]

約数ペア:

[(1, 81120872), (2, 40560436), (4, 20280218), (7, 11588696), (8, 10140109), (14, 5794348), (17, 4771816), (28, 2897174), (34, 2385908), (37, 2192456), (47, 1725976), (49, 1655528), (56, 1448587), (68, 1192954), (74, 1096228), (94, 862988), (98, 827764), (119, 681688), (136, 596477), (148, 548114), (188, 431494), (196, 413882), (238, 340844), (259, 313208), (296, 274057), (329, 246568), (343, 236504), (376, 215747), (392, 206941), (476, 170422), (518, 156604), (629, 128968), (658, 123284), (686, 118252), (799, 101528), (833, 97384), (952, 85211), (1036, 78302), (1258, 64484), (1316, 61642), (1372, 59126), (1598, 50764), (1666, 48692), (1739, 46648), (1813, 44744), (2072, 39151), (2303, 35224), (2516, 32242), (2632, 30821), (2744, 29563), (3196, 25382), (3332, 24346), (3478, 23324), (3626, 22372), (4403, 18424), (4606, 17612), (5032, 16121), (5593, 14504), (5831, 13912), (6392, 12691), (6664, 12173), (6956, 11662), (7252, 11186), (8806, 9212)]