28821660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{421}}^1$

素因数の和:603

約数の個数: 96

約数和(自身を含む): 93015552

約数和(自身を除く): 64193892

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 163, 210, 326, 420, 421, 489, 652, 815, 842, 978, 1141, 1263, 1630, 1684, 1956, 2105, 2282, 2445, 2526, 2947, 3260, 3423, 4210, 4564, 4890, 5052, 5705, 5894, 6315, 6846, 8420, 8841, 9780, 11410, 11788, 12630, 13692, 14735, 17115, 17682, 22820, 25260, 29470, 34230, 35364, 44205, 58940, 68460, 68623, 88410, 137246, 176820, 205869, 274492, 343115, 411738, 480361, 686230, 823476, 960722, 1029345, 1372460, 1441083, 1921444, 2058690, 2401805, 2882166, 4117380, 4803610, 5764332, 7205415, 9607220, 14410830, 28821660]

約数ペア:

[(1, 28821660), (2, 14410830), (3, 9607220), (4, 7205415), (5, 5764332), (6, 4803610), (7, 4117380), (10, 2882166), (12, 2401805), (14, 2058690), (15, 1921444), (20, 1441083), (21, 1372460), (28, 1029345), (30, 960722), (35, 823476), (42, 686230), (60, 480361), (70, 411738), (84, 343115), (105, 274492), (140, 205869), (163, 176820), (210, 137246), (326, 88410), (420, 68623), (421, 68460), (489, 58940), (652, 44205), (815, 35364), (842, 34230), (978, 29470), (1141, 25260), (1263, 22820), (1630, 17682), (1684, 17115), (1956, 14735), (2105, 13692), (2282, 12630), (2445, 11788), (2526, 11410), (2947, 9780), (3260, 8841), (3423, 8420), (4210, 6846), (4564, 6315), (4890, 5894), (5052, 5705)]