217721556

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:446

約数の個数: 144

約数和(自身を含む): 627827200

約数和(自身を除く): 410105644

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 31, 36, 39, 43, 52, 62, 78, 86, 93, 117, 124, 129, 156, 172, 186, 234, 258, 279, 349, 372, 387, 403, 468, 516, 558, 559, 698, 774, 806, 1047, 1116, 1118, 1209, 1333, 1396, 1548, 1612, 1677, 2094, 2236, 2418, 2666, 3141, 3354, 3627, 3999, 4188, 4537, 4836, 5031, 5332, 6282, 6708, 7254, 7998, 9074, 10062, 10819, 11997, 12564, 13611, 14508, 15007, 15996, 17329, 18148, 20124, 21638, 23994, 27222, 30014, 32457, 34658, 40833, 43276, 45021, 47988, 51987, 54444, 60028, 64914, 69316, 81666, 90042, 97371, 103974, 129828, 135063, 140647, 155961, 163332, 180084, 194742, 195091, 207948, 270126, 281294, 311922, 389484, 390182, 421941, 465217, 540252, 562588, 585273, 623844, 780364, 843882, 930434, 1170546, 1265823, 1395651, 1687764, 1755819, 1860868, 2341092, 2531646, 2791302, 3511638, 4186953, 5063292, 5582604, 6047821, 7023276, 8373906, 12095642, 16747812, 18143463, 24191284, 36286926, 54430389, 72573852, 108860778, 217721556]

約数ペア:

[(1, 217721556), (2, 108860778), (3, 72573852), (4, 54430389), (6, 36286926), (9, 24191284), (12, 18143463), (13, 16747812), (18, 12095642), (26, 8373906), (31, 7023276), (36, 6047821), (39, 5582604), (43, 5063292), (52, 4186953), (62, 3511638), (78, 2791302), (86, 2531646), (93, 2341092), (117, 1860868), (124, 1755819), (129, 1687764), (156, 1395651), (172, 1265823), (186, 1170546), (234, 930434), (258, 843882), (279, 780364), (349, 623844), (372, 585273), (387, 562588), (403, 540252), (468, 465217), (516, 421941), (558, 390182), (559, 389484), (698, 311922), (774, 281294), (806, 270126), (1047, 207948), (1116, 195091), (1118, 194742), (1209, 180084), (1333, 163332), (1396, 155961), (1548, 140647), (1612, 135063), (1677, 129828), (2094, 103974), (2236, 97371), (2418, 90042), (2666, 81666), (3141, 69316), (3354, 64914), (3627, 60028), (3999, 54444), (4188, 51987), (4537, 47988), (4836, 45021), (5031, 43276), (5332, 40833), (6282, 34658), (6708, 32457), (7254, 30014), (7998, 27222), (9074, 23994), (10062, 21638), (10819, 20124), (11997, 18148), (12564, 17329), (13611, 15996), (14508, 15007)]