20863710

素因数分解:

$2^1\times 3^3\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1$

素因数の和:132

約数の個数: 192

約数和(自身を含む): 68947200

約数和(自身を除く): 48083490

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 27, 30, 35, 38, 42, 45, 49, 54, 57, 63, 70, 83, 90, 95, 98, 105, 114, 126, 133, 135, 147, 166, 171, 189, 190, 210, 245, 249, 266, 270, 285, 294, 315, 342, 378, 399, 415, 441, 490, 498, 513, 570, 581, 630, 665, 735, 747, 798, 830, 855, 882, 931, 945, 1026, 1162, 1197, 1245, 1323, 1330, 1470, 1494, 1577, 1710, 1743, 1862, 1890, 1995, 2205, 2241, 2394, 2490, 2565, 2646, 2793, 2905, 3154, 3486, 3591, 3735, 3990, 4067, 4410, 4482, 4655, 4731, 5130, 5229, 5586, 5810, 5985, 6615, 7182, 7470, 7885, 8134, 8379, 8715, 9310, 9462, 10458, 11039, 11205, 11970, 12201, 13230, 13965, 14193, 15687, 15770, 16758, 17430, 17955, 20335, 22078, 22410, 23655, 24402, 25137, 26145, 27930, 28386, 31374, 33117, 35910, 36603, 40670, 41895, 42579, 47310, 50274, 52290, 55195, 61005, 66234, 70965, 73206, 77273, 78435, 83790, 85158, 99351, 109809, 110390, 122010, 125685, 141930, 154546, 156870, 165585, 183015, 198702, 212895, 219618, 231819, 251370, 298053, 331170, 366030, 386365, 425790, 463638, 496755, 549045, 596106, 695457, 772730, 993510, 1098090, 1159095, 1390914, 1490265, 2086371, 2318190, 2980530, 3477285, 4172742, 6954570, 10431855, 20863710]

約数ペア:

[(1, 20863710), (2, 10431855), (3, 6954570), (5, 4172742), (6, 3477285), (7, 2980530), (9, 2318190), (10, 2086371), (14, 1490265), (15, 1390914), (18, 1159095), (19, 1098090), (21, 993510), (27, 772730), (30, 695457), (35, 596106), (38, 549045), (42, 496755), (45, 463638), (49, 425790), (54, 386365), (57, 366030), (63, 331170), (70, 298053), (83, 251370), (90, 231819), (95, 219618), (98, 212895), (105, 198702), (114, 183015), (126, 165585), (133, 156870), (135, 154546), (147, 141930), (166, 125685), (171, 122010), (189, 110390), (190, 109809), (210, 99351), (245, 85158), (249, 83790), (266, 78435), (270, 77273), (285, 73206), (294, 70965), (315, 66234), (342, 61005), (378, 55195), (399, 52290), (415, 50274), (441, 47310), (490, 42579), (498, 41895), (513, 40670), (570, 36603), (581, 35910), (630, 33117), (665, 31374), (735, 28386), (747, 27930), (798, 26145), (830, 25137), (855, 24402), (882, 23655), (931, 22410), (945, 22078), (1026, 20335), (1162, 17955), (1197, 17430), (1245, 16758), (1323, 15770), (1330, 15687), (1470, 14193), (1494, 13965), (1577, 13230), (1710, 12201), (1743, 11970), (1862, 11205), (1890, 11039), (1995, 10458), (2205, 9462), (2241, 9310), (2394, 8715), (2490, 8379), (2565, 8134), (2646, 7885), (2793, 7470), (2905, 7182), (3154, 6615), (3486, 5985), (3591, 5810), (3735, 5586), (3990, 5229), (4067, 5130), (4410, 4731), (4482, 4655)]