81437928

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{389}}^1$

素因数の和:483

約数の個数: 128

約数和(自身を含む): 243734400

約数和(自身を除く): 162296472

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 13, 22, 24, 26, 33, 39, 44, 52, 61, 66, 78, 88, 104, 122, 132, 143, 156, 183, 244, 264, 286, 312, 366, 389, 429, 488, 572, 671, 732, 778, 793, 858, 1144, 1167, 1342, 1464, 1556, 1586, 1716, 2013, 2334, 2379, 2684, 3112, 3172, 3432, 4026, 4279, 4668, 4758, 5057, 5368, 6344, 8052, 8558, 8723, 9336, 9516, 10114, 12837, 15171, 16104, 17116, 17446, 19032, 20228, 23729, 25674, 26169, 30342, 34232, 34892, 40456, 47458, 51348, 52338, 55627, 60684, 69784, 71187, 94916, 102696, 104676, 111254, 121368, 142374, 166881, 189832, 209352, 222508, 261019, 284748, 308477, 333762, 445016, 522038, 569496, 616954, 667524, 783057, 925431, 1044076, 1233908, 1335048, 1566114, 1850862, 2088152, 2467816, 3132228, 3393247, 3701724, 6264456, 6786494, 7403448, 10179741, 13572988, 20359482, 27145976, 40718964, 81437928]

約数ペア:

[(1, 81437928), (2, 40718964), (3, 27145976), (4, 20359482), (6, 13572988), (8, 10179741), (11, 7403448), (12, 6786494), (13, 6264456), (22, 3701724), (24, 3393247), (26, 3132228), (33, 2467816), (39, 2088152), (44, 1850862), (52, 1566114), (61, 1335048), (66, 1233908), (78, 1044076), (88, 925431), (104, 783057), (122, 667524), (132, 616954), (143, 569496), (156, 522038), (183, 445016), (244, 333762), (264, 308477), (286, 284748), (312, 261019), (366, 222508), (389, 209352), (429, 189832), (488, 166881), (572, 142374), (671, 121368), (732, 111254), (778, 104676), (793, 102696), (858, 94916), (1144, 71187), (1167, 69784), (1342, 60684), (1464, 55627), (1556, 52338), (1586, 51348), (1716, 47458), (2013, 40456), (2334, 34892), (2379, 34232), (2684, 30342), (3112, 26169), (3172, 25674), (3432, 23729), (4026, 20228), (4279, 19032), (4668, 17446), (4758, 17116), (5057, 16104), (5368, 15171), (6344, 12837), (8052, 10114), (8558, 9516), (8723, 9336)]