20333495

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1$

素因数の和:144

約数の個数: 64

約数和(自身を含む): 32901120

約数和(自身を除く): 12567625

約数列:

[1, 5, 7, 13, 23, 29, 35, 65, 67, 91, 115, 145, 161, 203, 299, 335, 377, 455, 469, 667, 805, 871, 1015, 1495, 1541, 1885, 1943, 2093, 2345, 2639, 3335, 4355, 4669, 6097, 7705, 8671, 9715, 10465, 10787, 13195, 13601, 20033, 23345, 25259, 30485, 43355, 44689, 53935, 60697, 68005, 100165, 126295, 140231, 176813, 223445, 303485, 312823, 580957, 701155, 884065, 1564115, 2904785, 4066699, 20333495]

約数ペア:

[(1, 20333495), (5, 4066699), (7, 2904785), (13, 1564115), (23, 884065), (29, 701155), (35, 580957), (65, 312823), (67, 303485), (91, 223445), (115, 176813), (145, 140231), (161, 126295), (203, 100165), (299, 68005), (335, 60697), (377, 53935), (455, 44689), (469, 43355), (667, 30485), (805, 25259), (871, 23345), (1015, 20033), (1495, 13601), (1541, 13195), (1885, 10787), (1943, 10465), (2093, 9715), (2345, 8671), (2639, 7705), (3335, 6097), (4355, 4669)]