20171249920

素因数分解:

$2^8\times 5^1\times {\mathrm{541}}^1\times {\mathrm{29129}}^1$

素因数の和:29691

約数の個数: 72

約数和(自身を含む): 48407418360

約数和(自身を除く): 28236168440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 541, 640, 1082, 1280, 2164, 2705, 4328, 5410, 8656, 10820, 17312, 21640, 29129, 34624, 43280, 58258, 69248, 86560, 116516, 138496, 145645, 173120, 233032, 291290, 346240, 466064, 582580, 692480, 932128, 1165160, 1864256, 2330320, 3728512, 4660640, 7457024, 9321280, 15758789, 18642560, 31517578, 37285120, 63035156, 78793945, 126070312, 157587890, 252140624, 315175780, 504281248, 630351560, 1008562496, 1260703120, 2017124992, 2521406240, 4034249984, 5042812480, 10085624960, 20171249920]

約数ペア:

[(1, 20171249920), (2, 10085624960), (4, 5042812480), (5, 4034249984), (8, 2521406240), (10, 2017124992), (16, 1260703120), (20, 1008562496), (32, 630351560), (40, 504281248), (64, 315175780), (80, 252140624), (128, 157587890), (160, 126070312), (256, 78793945), (320, 63035156), (541, 37285120), (640, 31517578), (1082, 18642560), (1280, 15758789), (2164, 9321280), (2705, 7457024), (4328, 4660640), (5410, 3728512), (8656, 2330320), (10820, 1864256), (17312, 1165160), (21640, 932128), (29129, 692480), (34624, 582580), (43280, 466064), (58258, 346240), (69248, 291290), (86560, 233032), (116516, 173120), (138496, 145645)]