18205980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1373}}^1$

素因数の和:1415

約数の個数: 96

約数和(自身を含む): 58169664

約数和(自身を除く): 39963684

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 26, 30, 34, 39, 51, 52, 60, 65, 68, 78, 85, 102, 130, 156, 170, 195, 204, 221, 255, 260, 340, 390, 442, 510, 663, 780, 884, 1020, 1105, 1326, 1373, 2210, 2652, 2746, 3315, 4119, 4420, 5492, 6630, 6865, 8238, 13260, 13730, 16476, 17849, 20595, 23341, 27460, 35698, 41190, 46682, 53547, 70023, 71396, 82380, 89245, 93364, 107094, 116705, 140046, 178490, 214188, 233410, 267735, 280092, 303433, 350115, 356980, 466820, 535470, 606866, 700230, 910299, 1070940, 1213732, 1400460, 1517165, 1820598, 3034330, 3641196, 4551495, 6068660, 9102990, 18205980]

約数ペア:

[(1, 18205980), (2, 9102990), (3, 6068660), (4, 4551495), (5, 3641196), (6, 3034330), (10, 1820598), (12, 1517165), (13, 1400460), (15, 1213732), (17, 1070940), (20, 910299), (26, 700230), (30, 606866), (34, 535470), (39, 466820), (51, 356980), (52, 350115), (60, 303433), (65, 280092), (68, 267735), (78, 233410), (85, 214188), (102, 178490), (130, 140046), (156, 116705), (170, 107094), (195, 93364), (204, 89245), (221, 82380), (255, 71396), (260, 70023), (340, 53547), (390, 46682), (442, 41190), (510, 35698), (663, 27460), (780, 23341), (884, 20595), (1020, 17849), (1105, 16476), (1326, 13730), (1373, 13260), (2210, 8238), (2652, 6865), (2746, 6630), (3315, 5492), (4119, 4420)]