918221840

素因数分解:

$2^4\times 5^1\times {\mathrm{1801}}^1\times {\mathrm{6373}}^1$

素因数の和:8187

約数の個数: 40

約数和(自身を含む): 2136386328

約数和(自身を除く): 1218164488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1801, 3602, 6373, 7204, 9005, 12746, 14408, 18010, 25492, 28816, 31865, 36020, 50984, 63730, 72040, 101968, 127460, 144080, 254920, 509840, 11477773, 22955546, 45911092, 57388865, 91822184, 114777730, 183644368, 229555460, 459110920, 918221840]

約数ペア:

[(1, 918221840), (2, 459110920), (4, 229555460), (5, 183644368), (8, 114777730), (10, 91822184), (16, 57388865), (20, 45911092), (40, 22955546), (80, 11477773), (1801, 509840), (3602, 254920), (6373, 144080), (7204, 127460), (9005, 101968), (12746, 72040), (14408, 63730), (18010, 50984), (25492, 36020), (28816, 31865)]