28841220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{983}}^1$

素因数の和:1161

約数の個数: 72

約数和(自身を含む): 88111296

約数和(自身を除く): 59270076

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 163, 180, 326, 489, 652, 815, 978, 983, 1467, 1630, 1956, 1966, 2445, 2934, 2949, 3260, 3932, 4890, 4915, 5868, 5898, 7335, 8847, 9780, 9830, 11796, 14670, 14745, 17694, 19660, 29340, 29490, 35388, 44235, 58980, 88470, 160229, 176940, 320458, 480687, 640916, 801145, 961374, 1442061, 1602290, 1922748, 2403435, 2884122, 3204580, 4806870, 5768244, 7210305, 9613740, 14420610, 28841220]

約数ペア:

[(1, 28841220), (2, 14420610), (3, 9613740), (4, 7210305), (5, 5768244), (6, 4806870), (9, 3204580), (10, 2884122), (12, 2403435), (15, 1922748), (18, 1602290), (20, 1442061), (30, 961374), (36, 801145), (45, 640916), (60, 480687), (90, 320458), (163, 176940), (180, 160229), (326, 88470), (489, 58980), (652, 44235), (815, 35388), (978, 29490), (983, 29340), (1467, 19660), (1630, 17694), (1956, 14745), (1966, 14670), (2445, 11796), (2934, 9830), (2949, 9780), (3260, 8847), (3932, 7335), (4890, 5898), (4915, 5868)]