275999720

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{619}}^1$

素因数の和:858

約数の個数: 64

約数和(自身を含む): 634780800

約数和(自身を除く): 358781080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 157, 284, 314, 355, 568, 619, 628, 710, 785, 1238, 1256, 1420, 1570, 2476, 2840, 3095, 3140, 4952, 6190, 6280, 11147, 12380, 22294, 24760, 43949, 44588, 55735, 87898, 89176, 97183, 111470, 175796, 194366, 219745, 222940, 351592, 388732, 439490, 445880, 485915, 777464, 878980, 971830, 1757960, 1943660, 3887320, 6899993, 13799986, 27599972, 34499965, 55199944, 68999930, 137999860, 275999720]

約数ペア:

[(1, 275999720), (2, 137999860), (4, 68999930), (5, 55199944), (8, 34499965), (10, 27599972), (20, 13799986), (40, 6899993), (71, 3887320), (142, 1943660), (157, 1757960), (284, 971830), (314, 878980), (355, 777464), (568, 485915), (619, 445880), (628, 439490), (710, 388732), (785, 351592), (1238, 222940), (1256, 219745), (1420, 194366), (1570, 175796), (2476, 111470), (2840, 97183), (3095, 89176), (3140, 87898), (4952, 55735), (6190, 44588), (6280, 43949), (11147, 24760), (12380, 22294)]