19758080

素因数分解:

$2^{10}\times 5^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1$

素因数の和:269

約数の個数: 88

約数和(自身を含む): 50405328

約数和(自身を除く): 30647248

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 227, 256, 272, 320, 340, 454, 512, 544, 640, 680, 908, 1024, 1088, 1135, 1280, 1360, 1816, 2176, 2270, 2560, 2720, 3632, 3859, 4352, 4540, 5120, 5440, 7264, 7718, 8704, 9080, 10880, 14528, 15436, 17408, 18160, 19295, 21760, 29056, 30872, 36320, 38590, 43520, 58112, 61744, 72640, 77180, 87040, 116224, 123488, 145280, 154360, 232448, 246976, 290560, 308720, 493952, 581120, 617440, 987904, 1162240, 1234880, 1975808, 2469760, 3951616, 4939520, 9879040, 19758080]

約数ペア:

[(1, 19758080), (2, 9879040), (4, 4939520), (5, 3951616), (8, 2469760), (10, 1975808), (16, 1234880), (17, 1162240), (20, 987904), (32, 617440), (34, 581120), (40, 493952), (64, 308720), (68, 290560), (80, 246976), (85, 232448), (128, 154360), (136, 145280), (160, 123488), (170, 116224), (227, 87040), (256, 77180), (272, 72640), (320, 61744), (340, 58112), (454, 43520), (512, 38590), (544, 36320), (640, 30872), (680, 29056), (908, 21760), (1024, 19295), (1088, 18160), (1135, 17408), (1280, 15436), (1360, 14528), (1816, 10880), (2176, 9080), (2270, 8704), (2560, 7718), (2720, 7264), (3632, 5440), (3859, 5120), (4352, 4540)]