200820405

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{229}}^1$

素因数の和:454

約数の個数: 64

約数和(自身を含む): 361670400

約数和(自身を除く): 160849995

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 85, 95, 181, 229, 255, 285, 323, 543, 687, 905, 969, 1145, 1615, 2715, 3077, 3435, 3439, 3893, 4351, 4845, 9231, 10317, 11679, 13053, 15385, 17195, 19465, 21755, 41449, 46155, 51585, 58395, 58463, 65265, 73967, 124347, 175389, 207245, 221901, 292315, 369835, 621735, 704633, 787531, 876945, 1109505, 2113899, 2362593, 3523165, 3937655, 10569495, 11812965, 13388027, 40164081, 66940135, 200820405]

約数ペア:

[(1, 200820405), (3, 66940135), (5, 40164081), (15, 13388027), (17, 11812965), (19, 10569495), (51, 3937655), (57, 3523165), (85, 2362593), (95, 2113899), (181, 1109505), (229, 876945), (255, 787531), (285, 704633), (323, 621735), (543, 369835), (687, 292315), (905, 221901), (969, 207245), (1145, 175389), (1615, 124347), (2715, 73967), (3077, 65265), (3435, 58463), (3439, 58395), (3893, 51585), (4351, 46155), (4845, 41449), (9231, 21755), (10317, 19465), (11679, 17195), (13053, 15385)]