19725480

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{349}}^1$

素因数の和:523

約数の個数: 96

約数和(自身を含む): 64701000

約数和(自身を除く): 44975520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 157, 180, 314, 349, 360, 471, 628, 698, 785, 942, 1047, 1256, 1396, 1413, 1570, 1745, 1884, 2094, 2355, 2792, 2826, 3140, 3141, 3490, 3768, 4188, 4710, 5235, 5652, 6280, 6282, 6980, 7065, 8376, 9420, 10470, 11304, 12564, 13960, 14130, 15705, 18840, 20940, 25128, 28260, 31410, 41880, 54793, 56520, 62820, 109586, 125640, 164379, 219172, 273965, 328758, 438344, 493137, 547930, 657516, 821895, 986274, 1095860, 1315032, 1643790, 1972548, 2191720, 2465685, 3287580, 3945096, 4931370, 6575160, 9862740, 19725480]

約数ペア:

[(1, 19725480), (2, 9862740), (3, 6575160), (4, 4931370), (5, 3945096), (6, 3287580), (8, 2465685), (9, 2191720), (10, 1972548), (12, 1643790), (15, 1315032), (18, 1095860), (20, 986274), (24, 821895), (30, 657516), (36, 547930), (40, 493137), (45, 438344), (60, 328758), (72, 273965), (90, 219172), (120, 164379), (157, 125640), (180, 109586), (314, 62820), (349, 56520), (360, 54793), (471, 41880), (628, 31410), (698, 28260), (785, 25128), (942, 20940), (1047, 18840), (1256, 15705), (1396, 14130), (1413, 13960), (1570, 12564), (1745, 11304), (1884, 10470), (2094, 9420), (2355, 8376), (2792, 7065), (2826, 6980), (3140, 6282), (3141, 6280), (3490, 5652), (3768, 5235), (4188, 4710)]