72001280

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4327}}^1$

素因数の和:4361

約数の個数: 72

約数和(自身を含む): 185775072

約数和(自身を除く): 113773792

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 4160, 4327, 8320, 8654, 16640, 17308, 21635, 34616, 43270, 56251, 69232, 86540, 112502, 138464, 173080, 225004, 276928, 281255, 346160, 450008, 553856, 562510, 692320, 900016, 1107712, 1125020, 1384640, 1800032, 2250040, 2769280, 3600064, 4500080, 5538560, 7200128, 9000160, 14400256, 18000320, 36000640, 72001280]

約数ペア:

[(1, 72001280), (2, 36000640), (4, 18000320), (5, 14400256), (8, 9000160), (10, 7200128), (13, 5538560), (16, 4500080), (20, 3600064), (26, 2769280), (32, 2250040), (40, 1800032), (52, 1384640), (64, 1125020), (65, 1107712), (80, 900016), (104, 692320), (128, 562510), (130, 553856), (160, 450008), (208, 346160), (256, 281255), (260, 276928), (320, 225004), (416, 173080), (520, 138464), (640, 112502), (832, 86540), (1040, 69232), (1280, 56251), (1664, 43270), (2080, 34616), (3328, 21635), (4160, 17308), (4327, 16640), (8320, 8654)]