81458390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:138

約数の個数: 128

約数和(自身を含む): 182891520

約数和(自身を除く): 101433130

約数列:

[1, 2, 5, 10, 13, 17, 26, 29, 31, 34, 41, 58, 62, 65, 82, 85, 130, 145, 155, 170, 205, 221, 290, 310, 377, 403, 410, 442, 493, 527, 533, 697, 754, 806, 899, 986, 1054, 1066, 1105, 1189, 1271, 1394, 1798, 1885, 2015, 2210, 2378, 2465, 2542, 2635, 2665, 3485, 3770, 4030, 4495, 4930, 5270, 5330, 5945, 6355, 6409, 6851, 6970, 8990, 9061, 11687, 11890, 12710, 12818, 13702, 15283, 15457, 16523, 18122, 20213, 21607, 23374, 30566, 30914, 32045, 33046, 34255, 36859, 40426, 43214, 45305, 58435, 64090, 68510, 73718, 76415, 77285, 82615, 90610, 101065, 108035, 116870, 152830, 154570, 165230, 184295, 198679, 202130, 216070, 262769, 280891, 368590, 397358, 479167, 525538, 561782, 626603, 958334, 993395, 1253206, 1313845, 1404455, 1986790, 2395835, 2627690, 2808910, 3133015, 4791670, 6266030, 8145839, 16291678, 40729195, 81458390]

約数ペア:

[(1, 81458390), (2, 40729195), (5, 16291678), (10, 8145839), (13, 6266030), (17, 4791670), (26, 3133015), (29, 2808910), (31, 2627690), (34, 2395835), (41, 1986790), (58, 1404455), (62, 1313845), (65, 1253206), (82, 993395), (85, 958334), (130, 626603), (145, 561782), (155, 525538), (170, 479167), (205, 397358), (221, 368590), (290, 280891), (310, 262769), (377, 216070), (403, 202130), (410, 198679), (442, 184295), (493, 165230), (527, 154570), (533, 152830), (697, 116870), (754, 108035), (806, 101065), (899, 90610), (986, 82615), (1054, 77285), (1066, 76415), (1105, 73718), (1189, 68510), (1271, 64090), (1394, 58435), (1798, 45305), (1885, 43214), (2015, 40426), (2210, 36859), (2378, 34255), (2465, 33046), (2542, 32045), (2635, 30914), (2665, 30566), (3485, 23374), (3770, 21607), (4030, 20213), (4495, 18122), (4930, 16523), (5270, 15457), (5330, 15283), (5945, 13702), (6355, 12818), (6409, 12710), (6851, 11890), (6970, 11687), (8990, 9061)]