28894980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1097}}^1$

素因数の和:1548

約数の個数: 48

約数和(自身を含む): 81164160

約数和(自身を除く): 52269180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 439, 878, 1097, 1317, 1756, 2194, 2195, 2634, 3291, 4388, 4390, 5268, 5485, 6582, 6585, 8780, 10970, 13164, 13170, 16455, 21940, 26340, 32910, 65820, 481583, 963166, 1444749, 1926332, 2407915, 2889498, 4815830, 5778996, 7223745, 9631660, 14447490, 28894980]

約数ペア:

[(1, 28894980), (2, 14447490), (3, 9631660), (4, 7223745), (5, 5778996), (6, 4815830), (10, 2889498), (12, 2407915), (15, 1926332), (20, 1444749), (30, 963166), (60, 481583), (439, 65820), (878, 32910), (1097, 26340), (1317, 21940), (1756, 16455), (2194, 13170), (2195, 13164), (2634, 10970), (3291, 8780), (4388, 6585), (4390, 6582), (5268, 5485)]