20121570

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2$

素因数の和:121

約数の個数: 144

約数和(自身を含む): 64509120

約数和(自身を除く): 44387550

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 30, 35, 38, 41, 42, 45, 57, 63, 70, 82, 90, 95, 105, 114, 123, 126, 133, 171, 190, 205, 210, 246, 266, 285, 287, 315, 342, 369, 399, 410, 570, 574, 615, 630, 665, 738, 779, 798, 855, 861, 1197, 1230, 1330, 1435, 1558, 1681, 1710, 1722, 1845, 1995, 2337, 2394, 2583, 2870, 3362, 3690, 3895, 3990, 4305, 4674, 5043, 5166, 5453, 5985, 7011, 7790, 8405, 8610, 10086, 10906, 11685, 11767, 11970, 12915, 14022, 15129, 16359, 16810, 23370, 23534, 25215, 25830, 27265, 30258, 31939, 32718, 35055, 35301, 49077, 50430, 54530, 58835, 63878, 70110, 70602, 75645, 81795, 95817, 98154, 105903, 117670, 151290, 159695, 163590, 176505, 191634, 211806, 223573, 245385, 287451, 319390, 353010, 447146, 479085, 490770, 529515, 574902, 670719, 958170, 1059030, 1117865, 1341438, 1437255, 2012157, 2235730, 2874510, 3353595, 4024314, 6707190, 10060785, 20121570]

約数ペア:

[(1, 20121570), (2, 10060785), (3, 6707190), (5, 4024314), (6, 3353595), (7, 2874510), (9, 2235730), (10, 2012157), (14, 1437255), (15, 1341438), (18, 1117865), (19, 1059030), (21, 958170), (30, 670719), (35, 574902), (38, 529515), (41, 490770), (42, 479085), (45, 447146), (57, 353010), (63, 319390), (70, 287451), (82, 245385), (90, 223573), (95, 211806), (105, 191634), (114, 176505), (123, 163590), (126, 159695), (133, 151290), (171, 117670), (190, 105903), (205, 98154), (210, 95817), (246, 81795), (266, 75645), (285, 70602), (287, 70110), (315, 63878), (342, 58835), (369, 54530), (399, 50430), (410, 49077), (570, 35301), (574, 35055), (615, 32718), (630, 31939), (665, 30258), (738, 27265), (779, 25830), (798, 25215), (855, 23534), (861, 23370), (1197, 16810), (1230, 16359), (1330, 15129), (1435, 14022), (1558, 12915), (1681, 11970), (1710, 11767), (1722, 11685), (1845, 10906), (1995, 10086), (2337, 8610), (2394, 8405), (2583, 7790), (2870, 7011), (3362, 5985), (3690, 5453), (3895, 5166), (3990, 5043), (4305, 4674)]