638893488

素因数分解:

$2^4\times 3^1\times {\mathrm{41}}^1\times {\mathrm{324641}}^1$

素因数の和:324693

約数の個数: 40

約数和(自身を含む): 1690735536

約数和(自身を除く): 1051842048

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 41, 48, 82, 123, 164, 246, 328, 492, 656, 984, 1968, 324641, 649282, 973923, 1298564, 1947846, 2597128, 3895692, 5194256, 7791384, 13310281, 15582768, 26620562, 39930843, 53241124, 79861686, 106482248, 159723372, 212964496, 319446744, 638893488]

約数ペア:

[(1, 638893488), (2, 319446744), (3, 212964496), (4, 159723372), (6, 106482248), (8, 79861686), (12, 53241124), (16, 39930843), (24, 26620562), (41, 15582768), (48, 13310281), (82, 7791384), (123, 5194256), (164, 3895692), (246, 2597128), (328, 1947846), (492, 1298564), (656, 973923), (984, 649282), (1968, 324641)]