28244580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{739}}^1$

素因数の和:778

約数の個数: 144

約数和(自身を含む): 99207360

約数和(自身を除く): 70962780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 49, 52, 60, 65, 70, 78, 84, 91, 98, 105, 130, 140, 147, 156, 182, 195, 196, 210, 245, 260, 273, 294, 364, 390, 420, 455, 490, 546, 588, 637, 735, 739, 780, 910, 980, 1092, 1274, 1365, 1470, 1478, 1820, 1911, 2217, 2548, 2730, 2940, 2956, 3185, 3695, 3822, 4434, 5173, 5460, 6370, 7390, 7644, 8868, 9555, 9607, 10346, 11085, 12740, 14780, 15519, 19110, 19214, 20692, 22170, 25865, 28821, 31038, 36211, 38220, 38428, 44340, 48035, 51730, 57642, 62076, 67249, 72422, 77595, 96070, 103460, 108633, 115284, 134498, 144105, 144844, 155190, 181055, 192140, 201747, 217266, 268996, 288210, 310380, 336245, 362110, 403494, 434532, 470743, 543165, 576420, 672490, 724220, 806988, 941486, 1008735, 1086330, 1344980, 1412229, 1882972, 2017470, 2172660, 2353715, 2824458, 4034940, 4707430, 5648916, 7061145, 9414860, 14122290, 28244580]

約数ペア:

[(1, 28244580), (2, 14122290), (3, 9414860), (4, 7061145), (5, 5648916), (6, 4707430), (7, 4034940), (10, 2824458), (12, 2353715), (13, 2172660), (14, 2017470), (15, 1882972), (20, 1412229), (21, 1344980), (26, 1086330), (28, 1008735), (30, 941486), (35, 806988), (39, 724220), (42, 672490), (49, 576420), (52, 543165), (60, 470743), (65, 434532), (70, 403494), (78, 362110), (84, 336245), (91, 310380), (98, 288210), (105, 268996), (130, 217266), (140, 201747), (147, 192140), (156, 181055), (182, 155190), (195, 144844), (196, 144105), (210, 134498), (245, 115284), (260, 108633), (273, 103460), (294, 96070), (364, 77595), (390, 72422), (420, 67249), (455, 62076), (490, 57642), (546, 51730), (588, 48035), (637, 44340), (735, 38428), (739, 38220), (780, 36211), (910, 31038), (980, 28821), (1092, 25865), (1274, 22170), (1365, 20692), (1470, 19214), (1478, 19110), (1820, 15519), (1911, 14780), (2217, 12740), (2548, 11085), (2730, 10346), (2940, 9607), (2956, 9555), (3185, 8868), (3695, 7644), (3822, 7390), (4434, 6370), (5173, 5460)]