76380380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:267

約数の個数: 72

約数和(自身を含む): 172821600

約数和(自身を除く): 96441220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 149, 190, 284, 298, 355, 361, 380, 596, 710, 722, 745, 1349, 1420, 1444, 1490, 1805, 2698, 2831, 2980, 3610, 5396, 5662, 6745, 7220, 10579, 11324, 13490, 14155, 21158, 25631, 26980, 28310, 42316, 51262, 52895, 53789, 56620, 102524, 105790, 107578, 128155, 201001, 211580, 215156, 256310, 268945, 402002, 512620, 537890, 804004, 1005005, 1075780, 2010010, 3819019, 4020020, 7638038, 15276076, 19095095, 38190190, 76380380]

約数ペア:

[(1, 76380380), (2, 38190190), (4, 19095095), (5, 15276076), (10, 7638038), (19, 4020020), (20, 3819019), (38, 2010010), (71, 1075780), (76, 1005005), (95, 804004), (142, 537890), (149, 512620), (190, 402002), (284, 268945), (298, 256310), (355, 215156), (361, 211580), (380, 201001), (596, 128155), (710, 107578), (722, 105790), (745, 102524), (1349, 56620), (1420, 53789), (1444, 52895), (1490, 51262), (1805, 42316), (2698, 28310), (2831, 26980), (2980, 25631), (3610, 21158), (5396, 14155), (5662, 13490), (6745, 11324), (7220, 10579)]