28969325

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 45532800

約数和(自身を除く): 16563475

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 101, 149, 175, 275, 385, 505, 707, 745, 1043, 1111, 1639, 1925, 2525, 3535, 3725, 5215, 5555, 7777, 8195, 11473, 15049, 17675, 26075, 27775, 38885, 40975, 57365, 75245, 105343, 165539, 194425, 286825, 376225, 526715, 827695, 1158773, 2633575, 4138475, 5793865, 28969325]

約数ペア:

[(1, 28969325), (5, 5793865), (7, 4138475), (11, 2633575), (25, 1158773), (35, 827695), (55, 526715), (77, 376225), (101, 286825), (149, 194425), (175, 165539), (275, 105343), (385, 75245), (505, 57365), (707, 40975), (745, 38885), (1043, 27775), (1111, 26075), (1639, 17675), (1925, 15049), (2525, 11473), (3535, 8195), (3725, 7777), (5215, 5555)]