220121475

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{89}}^1\times {\mathrm{673}}^1$

素因数の和:789

約数の個数: 72

約数和(自身を含む): 428744880

約数和(自身を除く): 208623405

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 75, 89, 105, 147, 175, 245, 267, 445, 525, 623, 673, 735, 1225, 1335, 1869, 2019, 2225, 3115, 3365, 3675, 4361, 4711, 6675, 9345, 10095, 13083, 14133, 15575, 16825, 21805, 23555, 32977, 46725, 50475, 59897, 65415, 70665, 98931, 109025, 117775, 164885, 179691, 299485, 327075, 353325, 419279, 494655, 824425, 898455, 1257837, 1497425, 2096395, 2473275, 2934953, 4492275, 6289185, 8804859, 10481975, 14674765, 31445925, 44024295, 73373825, 220121475]

約数ペア:

[(1, 220121475), (3, 73373825), (5, 44024295), (7, 31445925), (15, 14674765), (21, 10481975), (25, 8804859), (35, 6289185), (49, 4492275), (75, 2934953), (89, 2473275), (105, 2096395), (147, 1497425), (175, 1257837), (245, 898455), (267, 824425), (445, 494655), (525, 419279), (623, 353325), (673, 327075), (735, 299485), (1225, 179691), (1335, 164885), (1869, 117775), (2019, 109025), (2225, 98931), (3115, 70665), (3365, 65415), (3675, 59897), (4361, 50475), (4711, 46725), (6675, 32977), (9345, 23555), (10095, 21805), (13083, 16825), (14133, 15575)]