18811180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{907}}^1$

素因数の和:994

約数の個数: 48

約数和(自身を含む): 42559776

約数和(自身を除く): 23748596

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 61, 68, 85, 122, 170, 244, 305, 340, 610, 907, 1037, 1220, 1814, 2074, 3628, 4148, 4535, 5185, 9070, 10370, 15419, 18140, 20740, 30838, 55327, 61676, 77095, 110654, 154190, 221308, 276635, 308380, 553270, 940559, 1106540, 1881118, 3762236, 4702795, 9405590, 18811180]

約数ペア:

[(1, 18811180), (2, 9405590), (4, 4702795), (5, 3762236), (10, 1881118), (17, 1106540), (20, 940559), (34, 553270), (61, 308380), (68, 276635), (85, 221308), (122, 154190), (170, 110654), (244, 77095), (305, 61676), (340, 55327), (610, 30838), (907, 20740), (1037, 18140), (1220, 15419), (1814, 10370), (2074, 9070), (3628, 5185), (4148, 4535)]