121321980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{373}}^1$

素因数の和:540

約数の個数: 144

約数和(自身を含む): 400239840

約数和(自身を除く): 278917860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 139, 156, 180, 195, 234, 260, 278, 373, 390, 417, 468, 556, 585, 695, 746, 780, 834, 1119, 1170, 1251, 1390, 1492, 1668, 1807, 1865, 2085, 2238, 2340, 2502, 2780, 3357, 3614, 3730, 4170, 4476, 4849, 5004, 5421, 5595, 6255, 6714, 7228, 7460, 8340, 9035, 9698, 10842, 11190, 12510, 13428, 14547, 16263, 16785, 18070, 19396, 21684, 22380, 24245, 25020, 27105, 29094, 32526, 33570, 36140, 43641, 48490, 51847, 54210, 58188, 65052, 67140, 72735, 81315, 87282, 96980, 103694, 108420, 145470, 155541, 162630, 174564, 207388, 218205, 259235, 290940, 311082, 325260, 436410, 466623, 518470, 622164, 674011, 777705, 872820, 933246, 1036940, 1348022, 1555410, 1866492, 2022033, 2333115, 2696044, 3110820, 3370055, 4044066, 4666230, 6066099, 6740110, 8088132, 9332460, 10110165, 12132198, 13480220, 20220330, 24264396, 30330495, 40440660, 60660990, 121321980]

約数ペア:

[(1, 121321980), (2, 60660990), (3, 40440660), (4, 30330495), (5, 24264396), (6, 20220330), (9, 13480220), (10, 12132198), (12, 10110165), (13, 9332460), (15, 8088132), (18, 6740110), (20, 6066099), (26, 4666230), (30, 4044066), (36, 3370055), (39, 3110820), (45, 2696044), (52, 2333115), (60, 2022033), (65, 1866492), (78, 1555410), (90, 1348022), (117, 1036940), (130, 933246), (139, 872820), (156, 777705), (180, 674011), (195, 622164), (234, 518470), (260, 466623), (278, 436410), (373, 325260), (390, 311082), (417, 290940), (468, 259235), (556, 218205), (585, 207388), (695, 174564), (746, 162630), (780, 155541), (834, 145470), (1119, 108420), (1170, 103694), (1251, 96980), (1390, 87282), (1492, 81315), (1668, 72735), (1807, 67140), (1865, 65052), (2085, 58188), (2238, 54210), (2340, 51847), (2502, 48490), (2780, 43641), (3357, 36140), (3614, 33570), (3730, 32526), (4170, 29094), (4476, 27105), (4849, 25020), (5004, 24245), (5421, 22380), (5595, 21684), (6255, 19396), (6714, 18070), (7228, 16785), (7460, 16263), (8340, 14547), (9035, 13428), (9698, 12510), (10842, 11190)]