28915560

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2591}}^1$

素因数の和:2639

約数の個数: 96

約数和(自身を含む): 97044480

約数和(自身を除く): 68128920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 60, 62, 72, 90, 93, 120, 124, 155, 180, 186, 248, 279, 310, 360, 372, 465, 558, 620, 744, 930, 1116, 1240, 1395, 1860, 2232, 2591, 2790, 3720, 5182, 5580, 7773, 10364, 11160, 12955, 15546, 20728, 23319, 25910, 31092, 38865, 46638, 51820, 62184, 77730, 80321, 93276, 103640, 116595, 155460, 160642, 186552, 233190, 240963, 310920, 321284, 401605, 466380, 481926, 642568, 722889, 803210, 932760, 963852, 1204815, 1445778, 1606420, 1927704, 2409630, 2891556, 3212840, 3614445, 4819260, 5783112, 7228890, 9638520, 14457780, 28915560]

約数ペア:

[(1, 28915560), (2, 14457780), (3, 9638520), (4, 7228890), (5, 5783112), (6, 4819260), (8, 3614445), (9, 3212840), (10, 2891556), (12, 2409630), (15, 1927704), (18, 1606420), (20, 1445778), (24, 1204815), (30, 963852), (31, 932760), (36, 803210), (40, 722889), (45, 642568), (60, 481926), (62, 466380), (72, 401605), (90, 321284), (93, 310920), (120, 240963), (124, 233190), (155, 186552), (180, 160642), (186, 155460), (248, 116595), (279, 103640), (310, 93276), (360, 80321), (372, 77730), (465, 62184), (558, 51820), (620, 46638), (744, 38865), (930, 31092), (1116, 25910), (1240, 23319), (1395, 20728), (1860, 15546), (2232, 12955), (2591, 11160), (2790, 10364), (3720, 7773), (5182, 5580)]