399201516

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{727}}^1\times {\mathrm{2179}}^1$

素因数の和:2923

約数の個数: 72

約数和(自身を含む): 1155365120

約数和(自身を除く): 756163604

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 727, 1454, 2179, 2181, 2908, 4358, 4362, 5089, 6537, 6543, 8716, 8724, 10178, 13074, 13086, 15253, 15267, 19611, 20356, 26148, 26172, 30506, 30534, 39222, 45759, 45801, 61012, 61068, 78444, 91518, 91602, 137277, 183036, 183204, 274554, 549108, 1584133, 3168266, 4752399, 6336532, 9504798, 11088931, 14257197, 19009596, 22177862, 28514394, 33266793, 44355724, 57028788, 66533586, 99800379, 133067172, 199600758, 399201516]

約数ペア:

[(1, 399201516), (2, 199600758), (3, 133067172), (4, 99800379), (6, 66533586), (7, 57028788), (9, 44355724), (12, 33266793), (14, 28514394), (18, 22177862), (21, 19009596), (28, 14257197), (36, 11088931), (42, 9504798), (63, 6336532), (84, 4752399), (126, 3168266), (252, 1584133), (727, 549108), (1454, 274554), (2179, 183204), (2181, 183036), (2908, 137277), (4358, 91602), (4362, 91518), (5089, 78444), (6537, 61068), (6543, 61012), (8716, 45801), (8724, 45759), (10178, 39222), (13074, 30534), (13086, 30506), (15253, 26172), (15267, 26148), (19611, 20356)]