209476980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{443}}^1$

素因数の和:566

約数の個数: 144

約数和(自身を含む): 663272064

約数和(自身を除く): 453795084

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 60, 71, 74, 90, 111, 142, 148, 180, 185, 213, 222, 284, 333, 355, 370, 426, 443, 444, 555, 639, 666, 710, 740, 852, 886, 1065, 1110, 1278, 1329, 1332, 1420, 1665, 1772, 2130, 2215, 2220, 2556, 2627, 2658, 3195, 3330, 3987, 4260, 4430, 5254, 5316, 6390, 6645, 6660, 7881, 7974, 8860, 10508, 12780, 13135, 13290, 15762, 15948, 16391, 19935, 23643, 26270, 26580, 31453, 31524, 32782, 39405, 39870, 47286, 49173, 52540, 62906, 65564, 78810, 79740, 81955, 94359, 94572, 98346, 118215, 125812, 147519, 157265, 157620, 163910, 188718, 196692, 236430, 245865, 283077, 295038, 314530, 327820, 377436, 471795, 472860, 491730, 566154, 590076, 629060, 737595, 943590, 983460, 1132308, 1163761, 1415385, 1475190, 1887180, 2327522, 2830770, 2950380, 3491283, 4655044, 5661540, 5818805, 6982566, 10473849, 11637610, 13965132, 17456415, 20947698, 23275220, 34912830, 41895396, 52369245, 69825660, 104738490, 209476980]

約数ペア:

[(1, 209476980), (2, 104738490), (3, 69825660), (4, 52369245), (5, 41895396), (6, 34912830), (9, 23275220), (10, 20947698), (12, 17456415), (15, 13965132), (18, 11637610), (20, 10473849), (30, 6982566), (36, 5818805), (37, 5661540), (45, 4655044), (60, 3491283), (71, 2950380), (74, 2830770), (90, 2327522), (111, 1887180), (142, 1475190), (148, 1415385), (180, 1163761), (185, 1132308), (213, 983460), (222, 943590), (284, 737595), (333, 629060), (355, 590076), (370, 566154), (426, 491730), (443, 472860), (444, 471795), (555, 377436), (639, 327820), (666, 314530), (710, 295038), (740, 283077), (852, 245865), (886, 236430), (1065, 196692), (1110, 188718), (1278, 163910), (1329, 157620), (1332, 157265), (1420, 147519), (1665, 125812), (1772, 118215), (2130, 98346), (2215, 94572), (2220, 94359), (2556, 81955), (2627, 79740), (2658, 78810), (3195, 65564), (3330, 62906), (3987, 52540), (4260, 49173), (4430, 47286), (5254, 39870), (5316, 39405), (6390, 32782), (6645, 31524), (6660, 31453), (7881, 26580), (7974, 26270), (8860, 23643), (10508, 19935), (12780, 16391), (13135, 15948), (13290, 15762)]