28004340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1$

素因数の和:278

約数の個数: 192

約数和(自身を含む): 101154816

約数和(自身を除く): 73150476

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 23, 26, 28, 30, 35, 39, 42, 46, 52, 60, 65, 69, 70, 78, 84, 91, 92, 105, 115, 130, 138, 140, 156, 161, 182, 195, 210, 223, 230, 260, 273, 276, 299, 322, 345, 364, 390, 420, 446, 455, 460, 483, 546, 598, 644, 669, 690, 780, 805, 892, 897, 910, 966, 1092, 1115, 1196, 1338, 1365, 1380, 1495, 1561, 1610, 1794, 1820, 1932, 2093, 2230, 2415, 2676, 2730, 2899, 2990, 3122, 3220, 3345, 3588, 4186, 4460, 4485, 4683, 4830, 5129, 5460, 5798, 5980, 6244, 6279, 6690, 7805, 8372, 8697, 8970, 9366, 9660, 10258, 10465, 11596, 12558, 13380, 14495, 15387, 15610, 17394, 17940, 18732, 20293, 20516, 20930, 23415, 25116, 25645, 28990, 30774, 31220, 31395, 34788, 35903, 40586, 41860, 43485, 46830, 51290, 57980, 60879, 61548, 62790, 66677, 71806, 76935, 81172, 86970, 93660, 101465, 102580, 107709, 121758, 125580, 133354, 143612, 153870, 173940, 179515, 200031, 202930, 215418, 243516, 266708, 304395, 307740, 333385, 359030, 400062, 405860, 430836, 466739, 538545, 608790, 666770, 718060, 800124, 933478, 1000155, 1077090, 1217580, 1333540, 1400217, 1866956, 2000310, 2154180, 2333695, 2800434, 4000620, 4667390, 5600868, 7001085, 9334780, 14002170, 28004340]

約数ペア:

[(1, 28004340), (2, 14002170), (3, 9334780), (4, 7001085), (5, 5600868), (6, 4667390), (7, 4000620), (10, 2800434), (12, 2333695), (13, 2154180), (14, 2000310), (15, 1866956), (20, 1400217), (21, 1333540), (23, 1217580), (26, 1077090), (28, 1000155), (30, 933478), (35, 800124), (39, 718060), (42, 666770), (46, 608790), (52, 538545), (60, 466739), (65, 430836), (69, 405860), (70, 400062), (78, 359030), (84, 333385), (91, 307740), (92, 304395), (105, 266708), (115, 243516), (130, 215418), (138, 202930), (140, 200031), (156, 179515), (161, 173940), (182, 153870), (195, 143612), (210, 133354), (223, 125580), (230, 121758), (260, 107709), (273, 102580), (276, 101465), (299, 93660), (322, 86970), (345, 81172), (364, 76935), (390, 71806), (420, 66677), (446, 62790), (455, 61548), (460, 60879), (483, 57980), (546, 51290), (598, 46830), (644, 43485), (669, 41860), (690, 40586), (780, 35903), (805, 34788), (892, 31395), (897, 31220), (910, 30774), (966, 28990), (1092, 25645), (1115, 25116), (1196, 23415), (1338, 20930), (1365, 20516), (1380, 20293), (1495, 18732), (1561, 17940), (1610, 17394), (1794, 15610), (1820, 15387), (1932, 14495), (2093, 13380), (2230, 12558), (2415, 11596), (2676, 10465), (2730, 10258), (2899, 9660), (2990, 9366), (3122, 8970), (3220, 8697), (3345, 8372), (3588, 7805), (4186, 6690), (4460, 6279), (4485, 6244), (4683, 5980), (4830, 5798), (5129, 5460)]