19989900

素因数分解:

$2^2\times 3^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1$

素因数の和:213

約数の個数: 216

約数和(自身を含む): 75828480

約数和(自身を除く): 55838580

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 25, 28, 30, 35, 36, 38, 42, 45, 50, 57, 60, 63, 70, 75, 76, 84, 90, 95, 100, 105, 114, 126, 133, 140, 150, 167, 171, 175, 180, 190, 210, 225, 228, 252, 266, 285, 300, 315, 334, 342, 350, 380, 399, 420, 450, 475, 501, 525, 532, 570, 630, 665, 668, 684, 700, 798, 835, 855, 900, 950, 1002, 1050, 1140, 1169, 1197, 1260, 1330, 1425, 1503, 1575, 1596, 1670, 1710, 1900, 1995, 2004, 2100, 2338, 2394, 2505, 2660, 2850, 3006, 3150, 3173, 3325, 3340, 3420, 3507, 3990, 4175, 4275, 4676, 4788, 5010, 5700, 5845, 5985, 6012, 6300, 6346, 6650, 7014, 7515, 7980, 8350, 8550, 9519, 9975, 10020, 10521, 11690, 11970, 12525, 12692, 13300, 14028, 15030, 15865, 16700, 17100, 17535, 19038, 19950, 21042, 22211, 23380, 23940, 25050, 28557, 29225, 29925, 30060, 31730, 35070, 37575, 38076, 39900, 42084, 44422, 47595, 50100, 52605, 57114, 58450, 59850, 63460, 66633, 70140, 75150, 79325, 87675, 88844, 95190, 105210, 111055, 114228, 116900, 119700, 133266, 142785, 150300, 158650, 175350, 190380, 199899, 210420, 222110, 237975, 263025, 266532, 285570, 317300, 333165, 350700, 399798, 444220, 475950, 526050, 555275, 571140, 666330, 713925, 799596, 951900, 999495, 1052100, 1110550, 1332660, 1427850, 1665825, 1998990, 2221100, 2855700, 3331650, 3997980, 4997475, 6663300, 9994950, 19989900]

約数ペア:

[(1, 19989900), (2, 9994950), (3, 6663300), (4, 4997475), (5, 3997980), (6, 3331650), (7, 2855700), (9, 2221100), (10, 1998990), (12, 1665825), (14, 1427850), (15, 1332660), (18, 1110550), (19, 1052100), (20, 999495), (21, 951900), (25, 799596), (28, 713925), (30, 666330), (35, 571140), (36, 555275), (38, 526050), (42, 475950), (45, 444220), (50, 399798), (57, 350700), (60, 333165), (63, 317300), (70, 285570), (75, 266532), (76, 263025), (84, 237975), (90, 222110), (95, 210420), (100, 199899), (105, 190380), (114, 175350), (126, 158650), (133, 150300), (140, 142785), (150, 133266), (167, 119700), (171, 116900), (175, 114228), (180, 111055), (190, 105210), (210, 95190), (225, 88844), (228, 87675), (252, 79325), (266, 75150), (285, 70140), (300, 66633), (315, 63460), (334, 59850), (342, 58450), (350, 57114), (380, 52605), (399, 50100), (420, 47595), (450, 44422), (475, 42084), (501, 39900), (525, 38076), (532, 37575), (570, 35070), (630, 31730), (665, 30060), (668, 29925), (684, 29225), (700, 28557), (798, 25050), (835, 23940), (855, 23380), (900, 22211), (950, 21042), (1002, 19950), (1050, 19038), (1140, 17535), (1169, 17100), (1197, 16700), (1260, 15865), (1330, 15030), (1425, 14028), (1503, 13300), (1575, 12692), (1596, 12525), (1670, 11970), (1710, 11690), (1900, 10521), (1995, 10020), (2004, 9975), (2100, 9519), (2338, 8550), (2394, 8350), (2505, 7980), (2660, 7515), (2850, 7014), (3006, 6650), (3150, 6346), (3173, 6300), (3325, 6012), (3340, 5985), (3420, 5845), (3507, 5700), (3990, 5010), (4175, 4788), (4275, 4676)]