201712420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:330

約数の個数: 144

約数和(自身を含む): 540546048

約数和(自身を除く): 338833628

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 71, 91, 98, 130, 140, 142, 182, 196, 223, 245, 260, 284, 355, 364, 446, 455, 490, 497, 637, 710, 892, 910, 923, 980, 994, 1115, 1274, 1420, 1561, 1820, 1846, 1988, 2230, 2485, 2548, 2899, 3122, 3185, 3479, 3692, 4460, 4615, 4970, 5798, 6244, 6370, 6461, 6958, 7805, 9230, 9940, 10927, 11596, 12740, 12922, 13916, 14495, 15610, 15833, 17395, 18460, 20293, 21854, 25844, 28990, 31220, 31666, 32305, 34790, 40586, 43708, 45227, 54635, 57980, 63332, 64610, 69580, 79165, 81172, 90454, 101465, 109270, 110831, 129220, 142051, 158330, 180908, 202930, 205829, 218540, 221662, 226135, 284102, 316660, 405860, 411658, 443324, 452270, 554155, 568204, 710255, 775817, 823316, 904540, 1029145, 1108310, 1420510, 1440803, 1551634, 2058290, 2216620, 2841020, 2881606, 3103268, 3879085, 4116580, 5763212, 7204015, 7758170, 10085621, 14408030, 15516340, 20171242, 28816060, 40342484, 50428105, 100856210, 201712420]

約数ペア:

[(1, 201712420), (2, 100856210), (4, 50428105), (5, 40342484), (7, 28816060), (10, 20171242), (13, 15516340), (14, 14408030), (20, 10085621), (26, 7758170), (28, 7204015), (35, 5763212), (49, 4116580), (52, 3879085), (65, 3103268), (70, 2881606), (71, 2841020), (91, 2216620), (98, 2058290), (130, 1551634), (140, 1440803), (142, 1420510), (182, 1108310), (196, 1029145), (223, 904540), (245, 823316), (260, 775817), (284, 710255), (355, 568204), (364, 554155), (446, 452270), (455, 443324), (490, 411658), (497, 405860), (637, 316660), (710, 284102), (892, 226135), (910, 221662), (923, 218540), (980, 205829), (994, 202930), (1115, 180908), (1274, 158330), (1420, 142051), (1561, 129220), (1820, 110831), (1846, 109270), (1988, 101465), (2230, 90454), (2485, 81172), (2548, 79165), (2899, 69580), (3122, 64610), (3185, 63332), (3479, 57980), (3692, 54635), (4460, 45227), (4615, 43708), (4970, 40586), (5798, 34790), (6244, 32305), (6370, 31666), (6461, 31220), (6958, 28990), (7805, 25844), (9230, 21854), (9940, 20293), (10927, 18460), (11596, 17395), (12740, 15833), (12922, 15610), (13916, 14495)]