20034070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:253

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 23511530

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 71, 139, 142, 145, 203, 278, 290, 355, 406, 497, 695, 710, 973, 994, 1015, 1390, 1946, 2030, 2059, 2485, 4031, 4118, 4865, 4970, 8062, 9730, 9869, 10295, 14413, 19738, 20155, 20590, 28217, 28826, 40310, 49345, 56434, 69083, 72065, 98690, 138166, 141085, 144130, 282170, 286201, 345415, 572402, 690830, 1431005, 2003407, 2862010, 4006814, 10017035, 20034070]

約数ペア:

[(1, 20034070), (2, 10017035), (5, 4006814), (7, 2862010), (10, 2003407), (14, 1431005), (29, 690830), (35, 572402), (58, 345415), (70, 286201), (71, 282170), (139, 144130), (142, 141085), (145, 138166), (203, 98690), (278, 72065), (290, 69083), (355, 56434), (406, 49345), (497, 40310), (695, 28826), (710, 28217), (973, 20590), (994, 20155), (1015, 19738), (1390, 14413), (1946, 10295), (2030, 9869), (2059, 9730), (2485, 8062), (4031, 4970), (4118, 4865)]