218512840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{347}}^1$

素因数の和:551

約数の個数: 128

約数和(自身を含む): 610364160

約数和(自身を除く): 391851320

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 173, 182, 260, 280, 346, 347, 364, 455, 520, 692, 694, 728, 865, 910, 1211, 1384, 1388, 1730, 1735, 1820, 2249, 2422, 2429, 2776, 3460, 3470, 3640, 4498, 4511, 4844, 4858, 6055, 6920, 6940, 8996, 9022, 9688, 9716, 11245, 12110, 12145, 13880, 15743, 17992, 18044, 19432, 22490, 22555, 24220, 24290, 31486, 31577, 36088, 44980, 45110, 48440, 48580, 60031, 62972, 63154, 78715, 89960, 90220, 97160, 120062, 125944, 126308, 157430, 157885, 180440, 240124, 252616, 300155, 314860, 315770, 420217, 480248, 600310, 629720, 631540, 780403, 840434, 1200620, 1263080, 1560806, 1680868, 2101085, 2401240, 3121612, 3361736, 3902015, 4202170, 5462821, 6243224, 7804030, 8404340, 10925642, 15608060, 16808680, 21851284, 27314105, 31216120, 43702568, 54628210, 109256420, 218512840]

約数ペア:

[(1, 218512840), (2, 109256420), (4, 54628210), (5, 43702568), (7, 31216120), (8, 27314105), (10, 21851284), (13, 16808680), (14, 15608060), (20, 10925642), (26, 8404340), (28, 7804030), (35, 6243224), (40, 5462821), (52, 4202170), (56, 3902015), (65, 3361736), (70, 3121612), (91, 2401240), (104, 2101085), (130, 1680868), (140, 1560806), (173, 1263080), (182, 1200620), (260, 840434), (280, 780403), (346, 631540), (347, 629720), (364, 600310), (455, 480248), (520, 420217), (692, 315770), (694, 314860), (728, 300155), (865, 252616), (910, 240124), (1211, 180440), (1384, 157885), (1388, 157430), (1730, 126308), (1735, 125944), (1820, 120062), (2249, 97160), (2422, 90220), (2429, 89960), (2776, 78715), (3460, 63154), (3470, 62972), (3640, 60031), (4498, 48580), (4511, 48440), (4844, 45110), (4858, 44980), (6055, 36088), (6920, 31577), (6940, 31486), (8996, 24290), (9022, 24220), (9688, 22555), (9716, 22490), (11245, 19432), (12110, 18044), (12145, 17992), (13880, 15743)]