19515600

素因数分解:

$2^4\times 3^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1$

素因数の和:179

約数の個数: 240

約数和(自身を含む): 75342400

約数和(自身を除く): 55826800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 25, 26, 27, 30, 36, 39, 40, 45, 48, 50, 52, 54, 60, 65, 72, 75, 78, 80, 90, 100, 104, 108, 117, 120, 130, 135, 139, 144, 150, 156, 180, 195, 200, 208, 216, 225, 234, 240, 260, 270, 278, 300, 312, 325, 351, 360, 390, 400, 417, 432, 450, 468, 520, 540, 556, 585, 600, 624, 650, 675, 695, 702, 720, 780, 834, 900, 936, 975, 1040, 1080, 1112, 1170, 1200, 1251, 1300, 1350, 1390, 1404, 1560, 1668, 1755, 1800, 1807, 1872, 1950, 2085, 2160, 2224, 2340, 2502, 2600, 2700, 2780, 2808, 2925, 3120, 3336, 3475, 3510, 3600, 3614, 3753, 3900, 4170, 4680, 5004, 5200, 5400, 5421, 5560, 5616, 5850, 6255, 6672, 6950, 7020, 7228, 7506, 7800, 8340, 8775, 9035, 9360, 10008, 10425, 10800, 10842, 11120, 11700, 12510, 13900, 14040, 14456, 15012, 15600, 16263, 16680, 17550, 18070, 18765, 20016, 20850, 21684, 23400, 25020, 27105, 27800, 28080, 28912, 30024, 31275, 32526, 33360, 35100, 36140, 37530, 41700, 43368, 45175, 46800, 48789, 50040, 54210, 55600, 60048, 62550, 65052, 70200, 72280, 75060, 81315, 83400, 86736, 90350, 93825, 97578, 100080, 108420, 125100, 130104, 135525, 140400, 144560, 150120, 162630, 166800, 180700, 187650, 195156, 216840, 243945, 250200, 260208, 271050, 300240, 325260, 361400, 375300, 390312, 406575, 433680, 487890, 500400, 542100, 650520, 722800, 750600, 780624, 813150, 975780, 1084200, 1219725, 1301040, 1501200, 1626300, 1951560, 2168400, 2439450, 3252600, 3903120, 4878900, 6505200, 9757800, 19515600]

約数ペア:

[(1, 19515600), (2, 9757800), (3, 6505200), (4, 4878900), (5, 3903120), (6, 3252600), (8, 2439450), (9, 2168400), (10, 1951560), (12, 1626300), (13, 1501200), (15, 1301040), (16, 1219725), (18, 1084200), (20, 975780), (24, 813150), (25, 780624), (26, 750600), (27, 722800), (30, 650520), (36, 542100), (39, 500400), (40, 487890), (45, 433680), (48, 406575), (50, 390312), (52, 375300), (54, 361400), (60, 325260), (65, 300240), (72, 271050), (75, 260208), (78, 250200), (80, 243945), (90, 216840), (100, 195156), (104, 187650), (108, 180700), (117, 166800), (120, 162630), (130, 150120), (135, 144560), (139, 140400), (144, 135525), (150, 130104), (156, 125100), (180, 108420), (195, 100080), (200, 97578), (208, 93825), (216, 90350), (225, 86736), (234, 83400), (240, 81315), (260, 75060), (270, 72280), (278, 70200), (300, 65052), (312, 62550), (325, 60048), (351, 55600), (360, 54210), (390, 50040), (400, 48789), (417, 46800), (432, 45175), (450, 43368), (468, 41700), (520, 37530), (540, 36140), (556, 35100), (585, 33360), (600, 32526), (624, 31275), (650, 30024), (675, 28912), (695, 28080), (702, 27800), (720, 27105), (780, 25020), (834, 23400), (900, 21684), (936, 20850), (975, 20016), (1040, 18765), (1080, 18070), (1112, 17550), (1170, 16680), (1200, 16263), (1251, 15600), (1300, 15012), (1350, 14456), (1390, 14040), (1404, 13900), (1560, 12510), (1668, 11700), (1755, 11120), (1800, 10842), (1807, 10800), (1872, 10425), (1950, 10008), (2085, 9360), (2160, 9035), (2224, 8775), (2340, 8340), (2502, 7800), (2600, 7506), (2700, 7228), (2780, 7020), (2808, 6950), (2925, 6672), (3120, 6255), (3336, 5850), (3475, 5616), (3510, 5560), (3600, 5421), (3614, 5400), (3753, 5200), (3900, 5004), (4170, 4680)]