19848780

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:173

約数の個数: 192

約数和(自身を含む): 72576000

約数和(自身を除く): 52727220

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 59, 60, 63, 70, 84, 89, 90, 105, 108, 118, 126, 135, 140, 177, 178, 180, 189, 210, 236, 252, 267, 270, 295, 315, 354, 356, 378, 413, 420, 445, 531, 534, 540, 590, 623, 630, 708, 756, 801, 826, 885, 890, 945, 1062, 1068, 1180, 1239, 1246, 1260, 1335, 1593, 1602, 1652, 1770, 1780, 1869, 1890, 2065, 2124, 2403, 2478, 2492, 2655, 2670, 3115, 3186, 3204, 3540, 3717, 3738, 3780, 4005, 4130, 4806, 4956, 5251, 5310, 5340, 5607, 6195, 6230, 6372, 7434, 7476, 7965, 8010, 8260, 9345, 9612, 10502, 10620, 11151, 11214, 12015, 12390, 12460, 14868, 15753, 15930, 16020, 16821, 18585, 18690, 21004, 22302, 22428, 24030, 24780, 26255, 28035, 31506, 31860, 33642, 36757, 37170, 37380, 44604, 47259, 48060, 52510, 55755, 56070, 63012, 67284, 73514, 74340, 78765, 84105, 94518, 105020, 110271, 111510, 112140, 141777, 147028, 157530, 168210, 183785, 189036, 220542, 223020, 236295, 283554, 315060, 330813, 336420, 367570, 441084, 472590, 551355, 567108, 661626, 708885, 735140, 945180, 992439, 1102710, 1323252, 1417770, 1654065, 1984878, 2205420, 2835540, 3308130, 3969756, 4962195, 6616260, 9924390, 19848780]

約数ペア:

[(1, 19848780), (2, 9924390), (3, 6616260), (4, 4962195), (5, 3969756), (6, 3308130), (7, 2835540), (9, 2205420), (10, 1984878), (12, 1654065), (14, 1417770), (15, 1323252), (18, 1102710), (20, 992439), (21, 945180), (27, 735140), (28, 708885), (30, 661626), (35, 567108), (36, 551355), (42, 472590), (45, 441084), (54, 367570), (59, 336420), (60, 330813), (63, 315060), (70, 283554), (84, 236295), (89, 223020), (90, 220542), (105, 189036), (108, 183785), (118, 168210), (126, 157530), (135, 147028), (140, 141777), (177, 112140), (178, 111510), (180, 110271), (189, 105020), (210, 94518), (236, 84105), (252, 78765), (267, 74340), (270, 73514), (295, 67284), (315, 63012), (354, 56070), (356, 55755), (378, 52510), (413, 48060), (420, 47259), (445, 44604), (531, 37380), (534, 37170), (540, 36757), (590, 33642), (623, 31860), (630, 31506), (708, 28035), (756, 26255), (801, 24780), (826, 24030), (885, 22428), (890, 22302), (945, 21004), (1062, 18690), (1068, 18585), (1180, 16821), (1239, 16020), (1246, 15930), (1260, 15753), (1335, 14868), (1593, 12460), (1602, 12390), (1652, 12015), (1770, 11214), (1780, 11151), (1869, 10620), (1890, 10502), (2065, 9612), (2124, 9345), (2403, 8260), (2478, 8010), (2492, 7965), (2655, 7476), (2670, 7434), (3115, 6372), (3186, 6230), (3204, 6195), (3540, 5607), (3717, 5340), (3738, 5310), (3780, 5251), (4005, 4956), (4130, 4806)]