1801980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:136

約数の個数: 96

約数和(自身を含む): 5806080

約数和(自身を除く): 4004100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 47, 54, 60, 71, 90, 94, 108, 135, 141, 142, 180, 188, 213, 235, 270, 282, 284, 355, 423, 426, 470, 540, 564, 639, 705, 710, 846, 852, 940, 1065, 1269, 1278, 1410, 1420, 1692, 1917, 2115, 2130, 2538, 2556, 2820, 3195, 3337, 3834, 4230, 4260, 5076, 6345, 6390, 6674, 7668, 8460, 9585, 10011, 12690, 12780, 13348, 16685, 19170, 20022, 25380, 30033, 33370, 38340, 40044, 50055, 60066, 66740, 90099, 100110, 120132, 150165, 180198, 200220, 300330, 360396, 450495, 600660, 900990, 1801980]

約数ペア:

[(1, 1801980), (2, 900990), (3, 600660), (4, 450495), (5, 360396), (6, 300330), (9, 200220), (10, 180198), (12, 150165), (15, 120132), (18, 100110), (20, 90099), (27, 66740), (30, 60066), (36, 50055), (45, 40044), (47, 38340), (54, 33370), (60, 30033), (71, 25380), (90, 20022), (94, 19170), (108, 16685), (135, 13348), (141, 12780), (142, 12690), (180, 10011), (188, 9585), (213, 8460), (235, 7668), (270, 6674), (282, 6390), (284, 6345), (355, 5076), (423, 4260), (426, 4230), (470, 3834), (540, 3337), (564, 3195), (639, 2820), (705, 2556), (710, 2538), (846, 2130), (852, 2115), (940, 1917), (1065, 1692), (1269, 1420), (1278, 1410)]