1900527820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{461}}^1\times {\mathrm{571}}^1$

素因数の和:1079

約数の個数: 72

約数和(自身を含む): 4228752528

約数和(自身を除く): 2328224708

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 461, 571, 722, 922, 1142, 1444, 1805, 1844, 2284, 2305, 2855, 3610, 4610, 5710, 7220, 8759, 9220, 10849, 11420, 17518, 21698, 35036, 43396, 43795, 54245, 87590, 108490, 166421, 175180, 206131, 216980, 263231, 332842, 412262, 526462, 665684, 824524, 832105, 1030655, 1052924, 1316155, 1664210, 2061310, 2632310, 3328420, 4122620, 5001389, 5264620, 10002778, 20005556, 25006945, 50013890, 95026391, 100027780, 190052782, 380105564, 475131955, 950263910, 1900527820]

約数ペア:

[(1, 1900527820), (2, 950263910), (4, 475131955), (5, 380105564), (10, 190052782), (19, 100027780), (20, 95026391), (38, 50013890), (76, 25006945), (95, 20005556), (190, 10002778), (361, 5264620), (380, 5001389), (461, 4122620), (571, 3328420), (722, 2632310), (922, 2061310), (1142, 1664210), (1444, 1316155), (1805, 1052924), (1844, 1030655), (2284, 832105), (2305, 824524), (2855, 665684), (3610, 526462), (4610, 412262), (5710, 332842), (7220, 263231), (8759, 216980), (9220, 206131), (10849, 175180), (11420, 166421), (17518, 108490), (21698, 87590), (35036, 54245), (43396, 43795)]