20397780468

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{571}}^1\times {\mathrm{2063}}^1$

素因数の和:2694

約数の個数: 144

約数和(自身を含む): 57155594496

約数和(自身を除く): 36757814028

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 37, 39, 52, 74, 78, 111, 117, 148, 156, 222, 234, 333, 444, 468, 481, 571, 666, 962, 1142, 1332, 1443, 1713, 1924, 2063, 2284, 2886, 3426, 4126, 4329, 5139, 5772, 6189, 6852, 7423, 8252, 8658, 10278, 12378, 14846, 17316, 18567, 20556, 21127, 22269, 24756, 26819, 29692, 37134, 42254, 44538, 53638, 63381, 66807, 74268, 76331, 80457, 84508, 89076, 107276, 126762, 133614, 152662, 160914, 190143, 228993, 241371, 253524, 267228, 274651, 305324, 321828, 380286, 457986, 482742, 549302, 686979, 760572, 823953, 915972, 965484, 992303, 1098604, 1177973, 1373958, 1647906, 1984606, 2355946, 2471859, 2747916, 2976909, 3295812, 3533919, 3969212, 4711892, 4943718, 5953818, 7067838, 8930727, 9887436, 10601757, 11907636, 14135676, 15313649, 17861454, 21203514, 30627298, 35722908, 42407028, 43585001, 45940947, 61254596, 87170002, 91881894, 130755003, 137822841, 174340004, 183763788, 261510006, 275645682, 392265009, 523020012, 551291364, 566605013, 784530018, 1133210026, 1569060036, 1699815039, 2266420052, 3399630078, 5099445117, 6799260156, 10198890234, 20397780468]

約数ペア:

[(1, 20397780468), (2, 10198890234), (3, 6799260156), (4, 5099445117), (6, 3399630078), (9, 2266420052), (12, 1699815039), (13, 1569060036), (18, 1133210026), (26, 784530018), (36, 566605013), (37, 551291364), (39, 523020012), (52, 392265009), (74, 275645682), (78, 261510006), (111, 183763788), (117, 174340004), (148, 137822841), (156, 130755003), (222, 91881894), (234, 87170002), (333, 61254596), (444, 45940947), (468, 43585001), (481, 42407028), (571, 35722908), (666, 30627298), (962, 21203514), (1142, 17861454), (1332, 15313649), (1443, 14135676), (1713, 11907636), (1924, 10601757), (2063, 9887436), (2284, 8930727), (2886, 7067838), (3426, 5953818), (4126, 4943718), (4329, 4711892), (5139, 3969212), (5772, 3533919), (6189, 3295812), (6852, 2976909), (7423, 2747916), (8252, 2471859), (8658, 2355946), (10278, 1984606), (12378, 1647906), (14846, 1373958), (17316, 1177973), (18567, 1098604), (20556, 992303), (21127, 965484), (22269, 915972), (24756, 823953), (26819, 760572), (29692, 686979), (37134, 549302), (42254, 482742), (44538, 457986), (53638, 380286), (63381, 321828), (66807, 305324), (74268, 274651), (76331, 267228), (80457, 253524), (84508, 241371), (89076, 228993), (107276, 190143), (126762, 160914), (133614, 152662)]