19018565540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{421}}^1\times {\mathrm{593}}^1$

素因数の和:1329

約数の個数: 96

約数和(自身を含む): 43333478496

約数和(自身を除く): 24314912956

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 293, 421, 586, 593, 842, 1172, 1186, 1465, 1684, 2105, 2372, 2930, 2965, 3809, 4210, 5473, 5860, 5930, 7618, 7709, 8420, 10946, 11860, 15236, 15418, 19045, 21892, 27365, 30836, 38090, 38545, 54730, 76180, 77090, 109460, 123353, 154180, 173749, 246706, 249653, 347498, 493412, 499306, 616765, 694996, 868745, 998612, 1233530, 1248265, 1603589, 1737490, 2258737, 2467060, 2496530, 3207178, 3245489, 3474980, 4517474, 4993060, 6414356, 6490978, 8017945, 9034948, 11293685, 12981956, 16035890, 16227445, 22587370, 32071780, 32454890, 45174740, 64909780, 73148329, 146296658, 292593316, 365741645, 731483290, 950928277, 1462966580, 1901856554, 3803713108, 4754641385, 9509282770, 19018565540]

約数ペア:

[(1, 19018565540), (2, 9509282770), (4, 4754641385), (5, 3803713108), (10, 1901856554), (13, 1462966580), (20, 950928277), (26, 731483290), (52, 365741645), (65, 292593316), (130, 146296658), (260, 73148329), (293, 64909780), (421, 45174740), (586, 32454890), (593, 32071780), (842, 22587370), (1172, 16227445), (1186, 16035890), (1465, 12981956), (1684, 11293685), (2105, 9034948), (2372, 8017945), (2930, 6490978), (2965, 6414356), (3809, 4993060), (4210, 4517474), (5473, 3474980), (5860, 3245489), (5930, 3207178), (7618, 2496530), (7709, 2467060), (8420, 2258737), (10946, 1737490), (11860, 1603589), (15236, 1248265), (15418, 1233530), (19045, 998612), (21892, 868745), (27365, 694996), (30836, 616765), (38090, 499306), (38545, 493412), (54730, 347498), (76180, 249653), (77090, 246706), (109460, 173749), (123353, 154180)]