28805425

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 42408000

約数和(自身を除く): 13602575

約数列:

[1, 5, 11, 19, 25, 37, 55, 95, 149, 185, 209, 275, 407, 475, 703, 745, 925, 1045, 1639, 2035, 2831, 3515, 3725, 5225, 5513, 7733, 8195, 10175, 14155, 17575, 27565, 31141, 38665, 40975, 60643, 70775, 104747, 137825, 155705, 193325, 303215, 523735, 778525, 1152217, 1516075, 2618675, 5761085, 28805425]

約数ペア:

[(1, 28805425), (5, 5761085), (11, 2618675), (19, 1516075), (25, 1152217), (37, 778525), (55, 523735), (95, 303215), (149, 193325), (185, 155705), (209, 137825), (275, 104747), (407, 70775), (475, 60643), (703, 40975), (745, 38665), (925, 31141), (1045, 27565), (1639, 17575), (2035, 14155), (2831, 10175), (3515, 8195), (3725, 7733), (5225, 5513)]