19810060256

素因数分解:

$2^5\times 7^2\times {\mathrm{163}}^1\times {\mathrm{77509}}^1$

素因数の和:77696

約数の個数: 72

約数和(自身を含む): 45647499240

約数和(自身を除く): 25837438984

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 163, 196, 224, 326, 392, 652, 784, 1141, 1304, 1568, 2282, 2608, 4564, 5216, 7987, 9128, 15974, 18256, 31948, 36512, 63896, 77509, 127792, 155018, 255584, 310036, 542563, 620072, 1085126, 1240144, 2170252, 2480288, 3797941, 4340504, 7595882, 8681008, 12633967, 15191764, 17362016, 25267934, 30383528, 50535868, 60767056, 88437769, 101071736, 121534112, 176875538, 202143472, 353751076, 404286944, 619064383, 707502152, 1238128766, 1415004304, 2476257532, 2830008608, 4952515064, 9905030128, 19810060256]

約数ペア:

[(1, 19810060256), (2, 9905030128), (4, 4952515064), (7, 2830008608), (8, 2476257532), (14, 1415004304), (16, 1238128766), (28, 707502152), (32, 619064383), (49, 404286944), (56, 353751076), (98, 202143472), (112, 176875538), (163, 121534112), (196, 101071736), (224, 88437769), (326, 60767056), (392, 50535868), (652, 30383528), (784, 25267934), (1141, 17362016), (1304, 15191764), (1568, 12633967), (2282, 8681008), (2608, 7595882), (4564, 4340504), (5216, 3797941), (7987, 2480288), (9128, 2170252), (15974, 1240144), (18256, 1085126), (31948, 620072), (36512, 542563), (63896, 310036), (77509, 255584), (127792, 155018)]