19479904

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{269}}^1$

素因数の和:383

約数の個数: 48

約数和(自身を含む): 40279680

約数和(自身を除く): 20799776

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 73, 124, 146, 248, 269, 292, 496, 538, 584, 992, 1076, 1168, 2152, 2263, 2336, 4304, 4526, 8339, 8608, 9052, 16678, 18104, 19637, 33356, 36208, 39274, 66712, 72416, 78548, 133424, 157096, 266848, 314192, 608747, 628384, 1217494, 2434988, 4869976, 9739952, 19479904]

約数ペア:

[(1, 19479904), (2, 9739952), (4, 4869976), (8, 2434988), (16, 1217494), (31, 628384), (32, 608747), (62, 314192), (73, 266848), (124, 157096), (146, 133424), (248, 78548), (269, 72416), (292, 66712), (496, 39274), (538, 36208), (584, 33356), (992, 19637), (1076, 18104), (1168, 16678), (2152, 9052), (2263, 8608), (2336, 8339), (4304, 4526)]