79689040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{509}}^1$

素因数の和:644

約数の個数: 80

約数和(自身を含む): 197308800

約数和(自身を除く): 117619760

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 103, 152, 190, 206, 304, 380, 412, 509, 515, 760, 824, 1018, 1030, 1520, 1648, 1957, 2036, 2060, 2545, 3914, 4072, 4120, 5090, 7828, 8144, 8240, 9671, 9785, 10180, 15656, 19342, 19570, 20360, 31312, 38684, 39140, 40720, 48355, 52427, 77368, 78280, 96710, 104854, 154736, 156560, 193420, 209708, 262135, 386840, 419416, 524270, 773680, 838832, 996113, 1048540, 1992226, 2097080, 3984452, 4194160, 4980565, 7968904, 9961130, 15937808, 19922260, 39844520, 79689040]

約数ペア:

[(1, 79689040), (2, 39844520), (4, 19922260), (5, 15937808), (8, 9961130), (10, 7968904), (16, 4980565), (19, 4194160), (20, 3984452), (38, 2097080), (40, 1992226), (76, 1048540), (80, 996113), (95, 838832), (103, 773680), (152, 524270), (190, 419416), (206, 386840), (304, 262135), (380, 209708), (412, 193420), (509, 156560), (515, 154736), (760, 104854), (824, 96710), (1018, 78280), (1030, 77368), (1520, 52427), (1648, 48355), (1957, 40720), (2036, 39140), (2060, 38684), (2545, 31312), (3914, 20360), (4072, 19570), (4120, 19342), (5090, 15656), (7828, 10180), (8144, 9785), (8240, 9671)]