81842760

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1$

素因数の和:388

約数の個数: 192

約数和(自身を含む): 289111680

約数和(自身を除く): 207268920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 30, 34, 36, 40, 43, 45, 51, 60, 68, 72, 85, 86, 90, 102, 120, 129, 136, 153, 170, 172, 180, 204, 215, 255, 258, 306, 311, 340, 344, 360, 387, 408, 430, 510, 516, 612, 622, 645, 680, 731, 765, 774, 860, 933, 1020, 1032, 1224, 1244, 1290, 1462, 1530, 1548, 1555, 1720, 1866, 1935, 2040, 2193, 2488, 2580, 2799, 2924, 3060, 3096, 3110, 3655, 3732, 3870, 4386, 4665, 5160, 5287, 5598, 5848, 6120, 6220, 6579, 7310, 7464, 7740, 8772, 9330, 10574, 10965, 11196, 12440, 13158, 13373, 13995, 14620, 15480, 15861, 17544, 18660, 21148, 21930, 22392, 26316, 26435, 26746, 27990, 29240, 31722, 32895, 37320, 40119, 42296, 43860, 47583, 52632, 52870, 53492, 55980, 63444, 65790, 66865, 79305, 80238, 87720, 95166, 105740, 106984, 111960, 120357, 126888, 131580, 133730, 158610, 160476, 190332, 200595, 211480, 227341, 237915, 240714, 263160, 267460, 317220, 320952, 380664, 401190, 454682, 475830, 481428, 534920, 601785, 634440, 682023, 802380, 909364, 951660, 962856, 1136705, 1203570, 1364046, 1604760, 1818728, 1903320, 2046069, 2273410, 2407140, 2728092, 3410115, 4092138, 4546820, 4814280, 5456184, 6820230, 8184276, 9093640, 10230345, 13640460, 16368552, 20460690, 27280920, 40921380, 81842760]

約数ペア:

[(1, 81842760), (2, 40921380), (3, 27280920), (4, 20460690), (5, 16368552), (6, 13640460), (8, 10230345), (9, 9093640), (10, 8184276), (12, 6820230), (15, 5456184), (17, 4814280), (18, 4546820), (20, 4092138), (24, 3410115), (30, 2728092), (34, 2407140), (36, 2273410), (40, 2046069), (43, 1903320), (45, 1818728), (51, 1604760), (60, 1364046), (68, 1203570), (72, 1136705), (85, 962856), (86, 951660), (90, 909364), (102, 802380), (120, 682023), (129, 634440), (136, 601785), (153, 534920), (170, 481428), (172, 475830), (180, 454682), (204, 401190), (215, 380664), (255, 320952), (258, 317220), (306, 267460), (311, 263160), (340, 240714), (344, 237915), (360, 227341), (387, 211480), (408, 200595), (430, 190332), (510, 160476), (516, 158610), (612, 133730), (622, 131580), (645, 126888), (680, 120357), (731, 111960), (765, 106984), (774, 105740), (860, 95166), (933, 87720), (1020, 80238), (1032, 79305), (1224, 66865), (1244, 65790), (1290, 63444), (1462, 55980), (1530, 53492), (1548, 52870), (1555, 52632), (1720, 47583), (1866, 43860), (1935, 42296), (2040, 40119), (2193, 37320), (2488, 32895), (2580, 31722), (2799, 29240), (2924, 27990), (3060, 26746), (3096, 26435), (3110, 26316), (3655, 22392), (3732, 21930), (3870, 21148), (4386, 18660), (4665, 17544), (5160, 15861), (5287, 15480), (5598, 14620), (5848, 13995), (6120, 13373), (6220, 13158), (6579, 12440), (7310, 11196), (7464, 10965), (7740, 10574), (8772, 9330)]