20450048

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:197

約数の個数: 72

約数和(自身を含む): 44739072

約数和(自身を除く): 24289024

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 37, 64, 68, 74, 127, 128, 136, 148, 254, 256, 272, 296, 508, 544, 592, 629, 1016, 1088, 1184, 1258, 2032, 2159, 2176, 2368, 2516, 4064, 4318, 4352, 4699, 4736, 5032, 8128, 8636, 9398, 9472, 10064, 16256, 17272, 18796, 20128, 32512, 34544, 37592, 40256, 69088, 75184, 79883, 80512, 138176, 150368, 159766, 161024, 276352, 300736, 319532, 552704, 601472, 639064, 1202944, 1278128, 2556256, 5112512, 10225024, 20450048]

約数ペア:

[(1, 20450048), (2, 10225024), (4, 5112512), (8, 2556256), (16, 1278128), (17, 1202944), (32, 639064), (34, 601472), (37, 552704), (64, 319532), (68, 300736), (74, 276352), (127, 161024), (128, 159766), (136, 150368), (148, 138176), (254, 80512), (256, 79883), (272, 75184), (296, 69088), (508, 40256), (544, 37592), (592, 34544), (629, 32512), (1016, 20128), (1088, 18796), (1184, 17272), (1258, 16256), (2032, 10064), (2159, 9472), (2176, 9398), (2368, 8636), (2516, 8128), (4064, 5032), (4318, 4736), (4352, 4699)]