81916668

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{691}}^1$

素因数の和:827

約数の個数: 72

約数和(自身を含む): 215364240

約数和(自身を除く): 133447572

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 89, 111, 148, 178, 222, 267, 333, 356, 444, 534, 666, 691, 801, 1068, 1332, 1382, 1602, 2073, 2764, 3204, 3293, 4146, 6219, 6586, 8292, 9879, 12438, 13172, 19758, 24876, 25567, 29637, 39516, 51134, 59274, 61499, 76701, 102268, 118548, 122998, 153402, 184497, 230103, 245996, 306804, 368994, 460206, 553491, 737988, 920412, 1106982, 2213964, 2275463, 4550926, 6826389, 9101852, 13652778, 20479167, 27305556, 40958334, 81916668]

約数ペア:

[(1, 81916668), (2, 40958334), (3, 27305556), (4, 20479167), (6, 13652778), (9, 9101852), (12, 6826389), (18, 4550926), (36, 2275463), (37, 2213964), (74, 1106982), (89, 920412), (111, 737988), (148, 553491), (178, 460206), (222, 368994), (267, 306804), (333, 245996), (356, 230103), (444, 184497), (534, 153402), (666, 122998), (691, 118548), (801, 102268), (1068, 76701), (1332, 61499), (1382, 59274), (1602, 51134), (2073, 39516), (2764, 29637), (3204, 25567), (3293, 24876), (4146, 19758), (6219, 13172), (6586, 12438), (8292, 9879)]