28770378

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:156

約数の個数: 128

約数和(自身を含む): 77414400

約数和(自身を除く): 48644022

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 23, 26, 29, 39, 42, 46, 58, 69, 78, 79, 87, 91, 138, 158, 161, 174, 182, 203, 237, 273, 299, 322, 377, 406, 474, 483, 546, 553, 598, 609, 667, 754, 897, 966, 1027, 1106, 1131, 1218, 1334, 1659, 1794, 1817, 2001, 2054, 2093, 2262, 2291, 2639, 3081, 3318, 3634, 4002, 4186, 4582, 4669, 5278, 5451, 6162, 6279, 6873, 7189, 7917, 8671, 9338, 10902, 12558, 12719, 13746, 14007, 14378, 15834, 16037, 17342, 21567, 23621, 25438, 26013, 28014, 29783, 32074, 38157, 43134, 47242, 48111, 52026, 52693, 59566, 60697, 70863, 76314, 89349, 96222, 105386, 121394, 141726, 158079, 165347, 178698, 182091, 208481, 316158, 330694, 364182, 368851, 416962, 496041, 625443, 685009, 737702, 992082, 1106553, 1250886, 1370018, 2055027, 2213106, 4110054, 4795063, 9590126, 14385189, 28770378]

約数ペア:

[(1, 28770378), (2, 14385189), (3, 9590126), (6, 4795063), (7, 4110054), (13, 2213106), (14, 2055027), (21, 1370018), (23, 1250886), (26, 1106553), (29, 992082), (39, 737702), (42, 685009), (46, 625443), (58, 496041), (69, 416962), (78, 368851), (79, 364182), (87, 330694), (91, 316158), (138, 208481), (158, 182091), (161, 178698), (174, 165347), (182, 158079), (203, 141726), (237, 121394), (273, 105386), (299, 96222), (322, 89349), (377, 76314), (406, 70863), (474, 60697), (483, 59566), (546, 52693), (553, 52026), (598, 48111), (609, 47242), (667, 43134), (754, 38157), (897, 32074), (966, 29783), (1027, 28014), (1106, 26013), (1131, 25438), (1218, 23621), (1334, 21567), (1659, 17342), (1794, 16037), (1817, 15834), (2001, 14378), (2054, 14007), (2093, 13746), (2262, 12719), (2291, 12558), (2639, 10902), (3081, 9338), (3318, 8671), (3634, 7917), (4002, 7189), (4186, 6873), (4582, 6279), (4669, 6162), (5278, 5451)]