20336384

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:185

約数の個数: 72

約数和(自身を含む): 44273040

約数和(自身を除く): 23936656

約数列:

[1, 2, 4, 8, 16, 19, 32, 37, 38, 64, 74, 76, 113, 128, 148, 152, 226, 256, 296, 304, 452, 592, 608, 703, 904, 1184, 1216, 1406, 1808, 2147, 2368, 2432, 2812, 3616, 4181, 4294, 4736, 4864, 5624, 7232, 8362, 8588, 9472, 11248, 14464, 16724, 17176, 22496, 28928, 33448, 34352, 44992, 66896, 68704, 79439, 89984, 133792, 137408, 158878, 179968, 267584, 274816, 317756, 535168, 549632, 635512, 1070336, 1271024, 2542048, 5084096, 10168192, 20336384]

約数ペア:

[(1, 20336384), (2, 10168192), (4, 5084096), (8, 2542048), (16, 1271024), (19, 1070336), (32, 635512), (37, 549632), (38, 535168), (64, 317756), (74, 274816), (76, 267584), (113, 179968), (128, 158878), (148, 137408), (152, 133792), (226, 89984), (256, 79439), (296, 68704), (304, 66896), (452, 44992), (592, 34352), (608, 33448), (703, 28928), (904, 22496), (1184, 17176), (1216, 16724), (1406, 14464), (1808, 11248), (2147, 9472), (2368, 8588), (2432, 8362), (2812, 7232), (3616, 5624), (4181, 4864), (4294, 4736)]