221218790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{3229}}^1$

素因数の和:3297

約数の個数: 64

約数和(自身を含む): 468840960

約数和(自身を除く): 247622170

約数列:

[1, 2, 5, 10, 13, 17, 26, 31, 34, 62, 65, 85, 130, 155, 170, 221, 310, 403, 442, 527, 806, 1054, 1105, 2015, 2210, 2635, 3229, 4030, 5270, 6458, 6851, 13702, 16145, 32290, 34255, 41977, 54893, 68510, 83954, 100099, 109786, 200198, 209885, 274465, 419770, 500495, 548930, 713609, 1000990, 1301287, 1427218, 1701683, 2602574, 3403366, 3568045, 6506435, 7136090, 8508415, 13012870, 17016830, 22121879, 44243758, 110609395, 221218790]

約数ペア:

[(1, 221218790), (2, 110609395), (5, 44243758), (10, 22121879), (13, 17016830), (17, 13012870), (26, 8508415), (31, 7136090), (34, 6506435), (62, 3568045), (65, 3403366), (85, 2602574), (130, 1701683), (155, 1427218), (170, 1301287), (221, 1000990), (310, 713609), (403, 548930), (442, 500495), (527, 419770), (806, 274465), (1054, 209885), (1105, 200198), (2015, 109786), (2210, 100099), (2635, 83954), (3229, 68510), (4030, 54893), (5270, 41977), (6458, 34255), (6851, 32290), (13702, 16145)]