19508820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:297

約数の個数: 96

約数和(自身を含む): 58396800

約数和(自身を除く): 38887980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 109, 114, 157, 190, 218, 228, 285, 314, 327, 380, 436, 471, 545, 570, 628, 654, 785, 942, 1090, 1140, 1308, 1570, 1635, 1884, 2071, 2180, 2355, 2983, 3140, 3270, 4142, 4710, 5966, 6213, 6540, 8284, 8949, 9420, 10355, 11932, 12426, 14915, 17113, 17898, 20710, 24852, 29830, 31065, 34226, 35796, 41420, 44745, 51339, 59660, 62130, 68452, 85565, 89490, 102678, 124260, 171130, 178980, 205356, 256695, 325147, 342260, 513390, 650294, 975441, 1026780, 1300588, 1625735, 1950882, 3251470, 3901764, 4877205, 6502940, 9754410, 19508820]

約数ペア:

[(1, 19508820), (2, 9754410), (3, 6502940), (4, 4877205), (5, 3901764), (6, 3251470), (10, 1950882), (12, 1625735), (15, 1300588), (19, 1026780), (20, 975441), (30, 650294), (38, 513390), (57, 342260), (60, 325147), (76, 256695), (95, 205356), (109, 178980), (114, 171130), (157, 124260), (190, 102678), (218, 89490), (228, 85565), (285, 68452), (314, 62130), (327, 59660), (380, 51339), (436, 44745), (471, 41420), (545, 35796), (570, 34226), (628, 31065), (654, 29830), (785, 24852), (942, 20710), (1090, 17898), (1140, 17113), (1308, 14915), (1570, 12426), (1635, 11932), (1884, 10355), (2071, 9420), (2180, 8949), (2355, 8284), (2983, 6540), (3140, 6213), (3270, 5966), (4142, 4710)]