51987420

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{563}}^1$

素因数の和:606

約数の個数: 144

約数和(自身を含む): 172448640

約数和(自身を除く): 120461220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 81, 90, 95, 108, 114, 135, 162, 171, 180, 190, 228, 243, 270, 285, 324, 342, 380, 405, 486, 513, 540, 563, 570, 684, 810, 855, 972, 1026, 1126, 1140, 1215, 1539, 1620, 1689, 1710, 2052, 2252, 2430, 2565, 2815, 3078, 3378, 3420, 4617, 4860, 5067, 5130, 5630, 6156, 6756, 7695, 8445, 9234, 10134, 10260, 10697, 11260, 15201, 15390, 16890, 18468, 20268, 21394, 23085, 25335, 30402, 30780, 32091, 33780, 42788, 45603, 46170, 50670, 53485, 60804, 64182, 76005, 91206, 92340, 96273, 101340, 106970, 128364, 136809, 152010, 160455, 182412, 192546, 213940, 228015, 273618, 288819, 304020, 320910, 385092, 456030, 481365, 547236, 577638, 641820, 684045, 866457, 912060, 962730, 1155276, 1368090, 1444095, 1732914, 1925460, 2599371, 2736180, 2888190, 3465828, 4332285, 5198742, 5776380, 8664570, 10397484, 12996855, 17329140, 25993710, 51987420]

約数ペア:

[(1, 51987420), (2, 25993710), (3, 17329140), (4, 12996855), (5, 10397484), (6, 8664570), (9, 5776380), (10, 5198742), (12, 4332285), (15, 3465828), (18, 2888190), (19, 2736180), (20, 2599371), (27, 1925460), (30, 1732914), (36, 1444095), (38, 1368090), (45, 1155276), (54, 962730), (57, 912060), (60, 866457), (76, 684045), (81, 641820), (90, 577638), (95, 547236), (108, 481365), (114, 456030), (135, 385092), (162, 320910), (171, 304020), (180, 288819), (190, 273618), (228, 228015), (243, 213940), (270, 192546), (285, 182412), (324, 160455), (342, 152010), (380, 136809), (405, 128364), (486, 106970), (513, 101340), (540, 96273), (563, 92340), (570, 91206), (684, 76005), (810, 64182), (855, 60804), (972, 53485), (1026, 50670), (1126, 46170), (1140, 45603), (1215, 42788), (1539, 33780), (1620, 32091), (1689, 30780), (1710, 30402), (2052, 25335), (2252, 23085), (2430, 21394), (2565, 20268), (2815, 18468), (3078, 16890), (3378, 15390), (3420, 15201), (4617, 11260), (4860, 10697), (5067, 10260), (5130, 10134), (5630, 9234), (6156, 8445), (6756, 7695)]