309760

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^2$

素因数の和:45

約数の個数: 60

約数和(自身を含む): 816354

約数和(自身を除く): 506594

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 121, 128, 160, 176, 220, 242, 256, 320, 352, 440, 484, 512, 605, 640, 704, 880, 968, 1210, 1280, 1408, 1760, 1936, 2420, 2560, 2816, 3520, 3872, 4840, 5632, 7040, 7744, 9680, 14080, 15488, 19360, 28160, 30976, 38720, 61952, 77440, 154880, 309760]

約数ペア:

[(1, 309760), (2, 154880), (4, 77440), (5, 61952), (8, 38720), (10, 30976), (11, 28160), (16, 19360), (20, 15488), (22, 14080), (32, 9680), (40, 7744), (44, 7040), (55, 5632), (64, 4840), (80, 3872), (88, 3520), (110, 2816), (121, 2560), (128, 2420), (160, 1936), (176, 1760), (220, 1408), (242, 1280), (256, 1210), (320, 968), (352, 880), (440, 704), (484, 640), (512, 605)]