28775790

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{541}}^1$

素因数の和:754

約数の個数: 64

約数和(自身を含む): 77267520

約数和(自身を除く): 48491730

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 197, 270, 394, 541, 591, 985, 1082, 1182, 1623, 1773, 1970, 2705, 2955, 3246, 3546, 4869, 5319, 5410, 5910, 8115, 8865, 9738, 10638, 14607, 16230, 17730, 24345, 26595, 29214, 48690, 53190, 73035, 106577, 146070, 213154, 319731, 532885, 639462, 959193, 1065770, 1598655, 1918386, 2877579, 3197310, 4795965, 5755158, 9591930, 14387895, 28775790]

約数ペア:

[(1, 28775790), (2, 14387895), (3, 9591930), (5, 5755158), (6, 4795965), (9, 3197310), (10, 2877579), (15, 1918386), (18, 1598655), (27, 1065770), (30, 959193), (45, 639462), (54, 532885), (90, 319731), (135, 213154), (197, 146070), (270, 106577), (394, 73035), (541, 53190), (591, 48690), (985, 29214), (1082, 26595), (1182, 24345), (1623, 17730), (1773, 16230), (1970, 14607), (2705, 10638), (2955, 9738), (3246, 8865), (3546, 8115), (4869, 5910), (5319, 5410)]