28941250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^2\times {\mathrm{137}}^1$

素因数の和:185

約数の個数: 60

約数和(自身を含む): 59170122

約数和(自身を除く): 30228872

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 137, 169, 250, 274, 325, 338, 625, 650, 685, 845, 1250, 1370, 1625, 1690, 1781, 3250, 3425, 3562, 4225, 6850, 8125, 8450, 8905, 16250, 17125, 17810, 21125, 23153, 34250, 42250, 44525, 46306, 85625, 89050, 105625, 115765, 171250, 211250, 222625, 231530, 445250, 578825, 1113125, 1157650, 2226250, 2894125, 5788250, 14470625, 28941250]

約数ペア:

[(1, 28941250), (2, 14470625), (5, 5788250), (10, 2894125), (13, 2226250), (25, 1157650), (26, 1113125), (50, 578825), (65, 445250), (125, 231530), (130, 222625), (137, 211250), (169, 171250), (250, 115765), (274, 105625), (325, 89050), (338, 85625), (625, 46306), (650, 44525), (685, 42250), (845, 34250), (1250, 23153), (1370, 21125), (1625, 17810), (1690, 17125), (1781, 16250), (3250, 8905), (3425, 8450), (3562, 8125), (4225, 6850)]