19030780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{821}}^1$

素因数の和:910

約数の個数: 48

約数和(自身を含む): 42809760

約数和(自身を除く): 23778980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 61, 76, 95, 122, 190, 244, 305, 380, 610, 821, 1159, 1220, 1642, 2318, 3284, 4105, 4636, 5795, 8210, 11590, 15599, 16420, 23180, 31198, 50081, 62396, 77995, 100162, 155990, 200324, 250405, 311980, 500810, 951539, 1001620, 1903078, 3806156, 4757695, 9515390, 19030780]

約数ペア:

[(1, 19030780), (2, 9515390), (4, 4757695), (5, 3806156), (10, 1903078), (19, 1001620), (20, 951539), (38, 500810), (61, 311980), (76, 250405), (95, 200324), (122, 155990), (190, 100162), (244, 77995), (305, 62396), (380, 50081), (610, 31198), (821, 23180), (1159, 16420), (1220, 15599), (1642, 11590), (2318, 8210), (3284, 5795), (4105, 4636)]