1981535640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{138763}}^1$

素因数の和:138801

約数の個数: 128

約数和(自身を含む): 7193525760

約数和(自身を除く): 5211990120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 51, 56, 60, 68, 70, 84, 85, 102, 105, 119, 120, 136, 140, 168, 170, 204, 210, 238, 255, 280, 340, 357, 408, 420, 476, 510, 595, 680, 714, 840, 952, 1020, 1190, 1428, 1785, 2040, 2380, 2856, 3570, 4760, 7140, 14280, 138763, 277526, 416289, 555052, 693815, 832578, 971341, 1110104, 1387630, 1665156, 1942682, 2081445, 2358971, 2775260, 2914023, 3330312, 3885364, 4162890, 4717942, 4856705, 5550520, 5828046, 7076913, 7770728, 8325780, 9435884, 9713410, 11656092, 11794855, 14153826, 14570115, 16512797, 16651560, 18871768, 19426820, 23312184, 23589710, 28307652, 29140230, 33025594, 35384565, 38853640, 47179420, 49538391, 56615304, 58280460, 66051188, 70769130, 82563985, 94358840, 99076782, 116560920, 132102376, 141538260, 165127970, 198153564, 247691955, 283076520, 330255940, 396307128, 495383910, 660511880, 990767820, 1981535640]

約数ペア:

[(1, 1981535640), (2, 990767820), (3, 660511880), (4, 495383910), (5, 396307128), (6, 330255940), (7, 283076520), (8, 247691955), (10, 198153564), (12, 165127970), (14, 141538260), (15, 132102376), (17, 116560920), (20, 99076782), (21, 94358840), (24, 82563985), (28, 70769130), (30, 66051188), (34, 58280460), (35, 56615304), (40, 49538391), (42, 47179420), (51, 38853640), (56, 35384565), (60, 33025594), (68, 29140230), (70, 28307652), (84, 23589710), (85, 23312184), (102, 19426820), (105, 18871768), (119, 16651560), (120, 16512797), (136, 14570115), (140, 14153826), (168, 11794855), (170, 11656092), (204, 9713410), (210, 9435884), (238, 8325780), (255, 7770728), (280, 7076913), (340, 5828046), (357, 5550520), (408, 4856705), (420, 4717942), (476, 4162890), (510, 3885364), (595, 3330312), (680, 2914023), (714, 2775260), (840, 2358971), (952, 2081445), (1020, 1942682), (1190, 1665156), (1428, 1387630), (1785, 1110104), (2040, 971341), (2380, 832578), (2856, 693815), (3570, 555052), (4760, 416289), (7140, 277526), (14280, 138763)]