287444445

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{109}}^1\times {\mathrm{487}}^1$

素因数の和:642

約数の個数: 48

約数和(自身を含む): 490849920

約数和(自身を除く): 203405475

約数列:

[1, 3, 5, 15, 19, 57, 95, 109, 285, 327, 361, 487, 545, 1083, 1461, 1635, 1805, 2071, 2435, 5415, 6213, 7305, 9253, 10355, 27759, 31065, 39349, 46265, 53083, 118047, 138795, 159249, 175807, 196745, 265415, 527421, 590235, 796245, 879035, 1008577, 2637105, 3025731, 5042885, 15128655, 19162963, 57488889, 95814815, 287444445]

約数ペア:

[(1, 287444445), (3, 95814815), (5, 57488889), (15, 19162963), (19, 15128655), (57, 5042885), (95, 3025731), (109, 2637105), (285, 1008577), (327, 879035), (361, 796245), (487, 590235), (545, 527421), (1083, 265415), (1461, 196745), (1635, 175807), (1805, 159249), (2071, 138795), (2435, 118047), (5415, 53083), (6213, 46265), (7305, 39349), (9253, 31065), (10355, 27759)]