20019960

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{167}}^1$

素因数の和:227

約数の個数: 160

約数和(自身を含む): 69521760

約数和(自身を除く): 49501800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 37, 40, 45, 54, 60, 72, 74, 81, 90, 108, 111, 120, 135, 148, 162, 167, 180, 185, 216, 222, 270, 296, 324, 333, 334, 360, 370, 405, 444, 501, 540, 555, 648, 666, 668, 740, 810, 835, 888, 999, 1002, 1080, 1110, 1332, 1336, 1480, 1503, 1620, 1665, 1670, 1998, 2004, 2220, 2505, 2664, 2997, 3006, 3240, 3330, 3340, 3996, 4008, 4440, 4509, 4995, 5010, 5994, 6012, 6179, 6660, 6680, 7515, 7992, 9018, 9990, 10020, 11988, 12024, 12358, 13320, 13527, 14985, 15030, 18036, 18537, 19980, 20040, 22545, 23976, 24716, 27054, 29970, 30060, 30895, 36072, 37074, 39960, 45090, 49432, 54108, 55611, 59940, 60120, 61790, 67635, 74148, 90180, 92685, 108216, 111222, 119880, 123580, 135270, 148296, 166833, 180360, 185370, 222444, 247160, 270540, 278055, 333666, 370740, 444888, 500499, 541080, 556110, 667332, 741480, 834165, 1000998, 1112220, 1334664, 1668330, 2001996, 2224440, 2502495, 3336660, 4003992, 5004990, 6673320, 10009980, 20019960]

約数ペア:

[(1, 20019960), (2, 10009980), (3, 6673320), (4, 5004990), (5, 4003992), (6, 3336660), (8, 2502495), (9, 2224440), (10, 2001996), (12, 1668330), (15, 1334664), (18, 1112220), (20, 1000998), (24, 834165), (27, 741480), (30, 667332), (36, 556110), (37, 541080), (40, 500499), (45, 444888), (54, 370740), (60, 333666), (72, 278055), (74, 270540), (81, 247160), (90, 222444), (108, 185370), (111, 180360), (120, 166833), (135, 148296), (148, 135270), (162, 123580), (167, 119880), (180, 111222), (185, 108216), (216, 92685), (222, 90180), (270, 74148), (296, 67635), (324, 61790), (333, 60120), (334, 59940), (360, 55611), (370, 54108), (405, 49432), (444, 45090), (501, 39960), (540, 37074), (555, 36072), (648, 30895), (666, 30060), (668, 29970), (740, 27054), (810, 24716), (835, 23976), (888, 22545), (999, 20040), (1002, 19980), (1080, 18537), (1110, 18036), (1332, 15030), (1336, 14985), (1480, 13527), (1503, 13320), (1620, 12358), (1665, 12024), (1670, 11988), (1998, 10020), (2004, 9990), (2220, 9018), (2505, 7992), (2664, 7515), (2997, 6680), (3006, 6660), (3240, 6179), (3330, 6012), (3340, 5994), (3996, 5010), (4008, 4995), (4440, 4509)]