21321806040

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{223}}^2\times {\mathrm{397}}^1$

素因数の和:863

約数の個数: 192

約数和(自身を含む): 71572658400

約数和(自身を除く): 50250852360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 223, 270, 360, 397, 446, 540, 669, 794, 892, 1080, 1115, 1191, 1338, 1588, 1784, 1985, 2007, 2230, 2382, 2676, 3176, 3345, 3573, 3970, 4014, 4460, 4764, 5352, 5955, 6021, 6690, 7146, 7940, 8028, 8920, 9528, 10035, 10719, 11910, 12042, 13380, 14292, 15880, 16056, 17865, 20070, 21438, 23820, 24084, 26760, 28584, 30105, 35730, 40140, 42876, 47640, 48168, 49729, 53595, 60210, 71460, 80280, 85752, 88531, 99458, 107190, 120420, 142920, 149187, 177062, 198916, 214380, 240840, 248645, 265593, 298374, 354124, 397832, 428760, 442655, 447561, 497290, 531186, 596748, 708248, 745935, 796779, 885310, 895122, 994580, 1062372, 1193496, 1327965, 1342683, 1491870, 1593558, 1770620, 1790244, 1989160, 2124744, 2237805, 2390337, 2655930, 2685366, 2983740, 3187116, 3541240, 3580488, 3983895, 4475610, 4780674, 5311860, 5370732, 5967480, 6374232, 6713415, 7967790, 8951220, 9561348, 10623720, 10741464, 11951685, 13426830, 15935580, 17902440, 19122696, 19742413, 23903370, 26853660, 31871160, 39484826, 47806740, 53707320, 59227239, 78969652, 95613480, 98712065, 118454478, 157939304, 177681717, 197424130, 236908956, 296136195, 355363434, 394848260, 473817912, 533045151, 592272390, 710726868, 789696520, 888408585, 1066090302, 1184544780, 1421453736, 1776817170, 2132180604, 2369089560, 2665225755, 3553634340, 4264361208, 5330451510, 7107268680, 10660903020, 21321806040]

約数ペア:

[(1, 21321806040), (2, 10660903020), (3, 7107268680), (4, 5330451510), (5, 4264361208), (6, 3553634340), (8, 2665225755), (9, 2369089560), (10, 2132180604), (12, 1776817170), (15, 1421453736), (18, 1184544780), (20, 1066090302), (24, 888408585), (27, 789696520), (30, 710726868), (36, 592272390), (40, 533045151), (45, 473817912), (54, 394848260), (60, 355363434), (72, 296136195), (90, 236908956), (108, 197424130), (120, 177681717), (135, 157939304), (180, 118454478), (216, 98712065), (223, 95613480), (270, 78969652), (360, 59227239), (397, 53707320), (446, 47806740), (540, 39484826), (669, 31871160), (794, 26853660), (892, 23903370), (1080, 19742413), (1115, 19122696), (1191, 17902440), (1338, 15935580), (1588, 13426830), (1784, 11951685), (1985, 10741464), (2007, 10623720), (2230, 9561348), (2382, 8951220), (2676, 7967790), (3176, 6713415), (3345, 6374232), (3573, 5967480), (3970, 5370732), (4014, 5311860), (4460, 4780674), (4764, 4475610), (5352, 3983895), (5955, 3580488), (6021, 3541240), (6690, 3187116), (7146, 2983740), (7940, 2685366), (8028, 2655930), (8920, 2390337), (9528, 2237805), (10035, 2124744), (10719, 1989160), (11910, 1790244), (12042, 1770620), (13380, 1593558), (14292, 1491870), (15880, 1342683), (16056, 1327965), (17865, 1193496), (20070, 1062372), (21438, 994580), (23820, 895122), (24084, 885310), (26760, 796779), (28584, 745935), (30105, 708248), (35730, 596748), (40140, 531186), (42876, 497290), (47640, 447561), (48168, 442655), (49729, 428760), (53595, 397832), (60210, 354124), (71460, 298374), (80280, 265593), (85752, 248645), (88531, 240840), (99458, 214380), (107190, 198916), (120420, 177062), (142920, 149187)]