81820890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^2\times {\mathrm{47}}^1$

素因数の和:141

約数の個数: 144

約数和(自身を含む): 234793728

約数和(自身を除く): 152972838

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 29, 30, 45, 46, 47, 58, 69, 87, 90, 94, 115, 138, 141, 145, 174, 207, 230, 235, 261, 282, 290, 345, 414, 423, 435, 470, 522, 667, 690, 705, 841, 846, 870, 1035, 1081, 1305, 1334, 1363, 1410, 1682, 2001, 2070, 2115, 2162, 2523, 2610, 2726, 3243, 3335, 4002, 4089, 4205, 4230, 5046, 5405, 6003, 6486, 6670, 6815, 7569, 8178, 8410, 9729, 10005, 10810, 12006, 12267, 12615, 13630, 15138, 16215, 19343, 19458, 20010, 20445, 24534, 25230, 30015, 31349, 32430, 37845, 38686, 39527, 40890, 48645, 58029, 60030, 61335, 62698, 75690, 79054, 94047, 96715, 97290, 116058, 118581, 122670, 156745, 174087, 188094, 193430, 197635, 237162, 282141, 290145, 313490, 348174, 355743, 395270, 470235, 564282, 580290, 592905, 711486, 870435, 909121, 940470, 1185810, 1410705, 1740870, 1778715, 1818242, 2727363, 2821410, 3557430, 4545605, 5454726, 8182089, 9091210, 13636815, 16364178, 27273630, 40910445, 81820890]

約数ペア:

[(1, 81820890), (2, 40910445), (3, 27273630), (5, 16364178), (6, 13636815), (9, 9091210), (10, 8182089), (15, 5454726), (18, 4545605), (23, 3557430), (29, 2821410), (30, 2727363), (45, 1818242), (46, 1778715), (47, 1740870), (58, 1410705), (69, 1185810), (87, 940470), (90, 909121), (94, 870435), (115, 711486), (138, 592905), (141, 580290), (145, 564282), (174, 470235), (207, 395270), (230, 355743), (235, 348174), (261, 313490), (282, 290145), (290, 282141), (345, 237162), (414, 197635), (423, 193430), (435, 188094), (470, 174087), (522, 156745), (667, 122670), (690, 118581), (705, 116058), (841, 97290), (846, 96715), (870, 94047), (1035, 79054), (1081, 75690), (1305, 62698), (1334, 61335), (1363, 60030), (1410, 58029), (1682, 48645), (2001, 40890), (2070, 39527), (2115, 38686), (2162, 37845), (2523, 32430), (2610, 31349), (2726, 30015), (3243, 25230), (3335, 24534), (4002, 20445), (4089, 20010), (4205, 19458), (4230, 19343), (5046, 16215), (5405, 15138), (6003, 13630), (6486, 12615), (6670, 12267), (6815, 12006), (7569, 10810), (8178, 10005), (8410, 9729)]