28171080

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{1597}}^1$

素因数の和:1628

約数の個数: 144

約数和(自身を含む): 106570620

約数和(自身を除く): 78399540

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 49, 56, 60, 63, 70, 72, 84, 90, 98, 105, 120, 126, 140, 147, 168, 180, 196, 210, 245, 252, 280, 294, 315, 360, 392, 420, 441, 490, 504, 588, 630, 735, 840, 882, 980, 1176, 1260, 1470, 1597, 1764, 1960, 2205, 2520, 2940, 3194, 3528, 4410, 4791, 5880, 6388, 7985, 8820, 9582, 11179, 12776, 14373, 15970, 17640, 19164, 22358, 23955, 28746, 31940, 33537, 38328, 44716, 47910, 55895, 57492, 63880, 67074, 71865, 78253, 89432, 95820, 100611, 111790, 114984, 134148, 143730, 156506, 167685, 191640, 201222, 223580, 234759, 268296, 287460, 313012, 335370, 391265, 402444, 447160, 469518, 503055, 574920, 626024, 670740, 704277, 782530, 804888, 939036, 1006110, 1173795, 1341480, 1408554, 1565060, 1878072, 2012220, 2347590, 2817108, 3130120, 3521385, 4024440, 4695180, 5634216, 7042770, 9390360, 14085540, 28171080]

約数ペア:

[(1, 28171080), (2, 14085540), (3, 9390360), (4, 7042770), (5, 5634216), (6, 4695180), (7, 4024440), (8, 3521385), (9, 3130120), (10, 2817108), (12, 2347590), (14, 2012220), (15, 1878072), (18, 1565060), (20, 1408554), (21, 1341480), (24, 1173795), (28, 1006110), (30, 939036), (35, 804888), (36, 782530), (40, 704277), (42, 670740), (45, 626024), (49, 574920), (56, 503055), (60, 469518), (63, 447160), (70, 402444), (72, 391265), (84, 335370), (90, 313012), (98, 287460), (105, 268296), (120, 234759), (126, 223580), (140, 201222), (147, 191640), (168, 167685), (180, 156506), (196, 143730), (210, 134148), (245, 114984), (252, 111790), (280, 100611), (294, 95820), (315, 89432), (360, 78253), (392, 71865), (420, 67074), (441, 63880), (490, 57492), (504, 55895), (588, 47910), (630, 44716), (735, 38328), (840, 33537), (882, 31940), (980, 28746), (1176, 23955), (1260, 22358), (1470, 19164), (1597, 17640), (1764, 15970), (1960, 14373), (2205, 12776), (2520, 11179), (2940, 9582), (3194, 8820), (3528, 7985), (4410, 6388), (4791, 5880)]