28273700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{239}}^1$

素因数の和:286

約数の個数: 108

約数和(自身を含む): 76245120

約数和(自身を除く): 47971420

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 130, 140, 169, 175, 182, 239, 260, 325, 338, 350, 364, 455, 478, 650, 676, 700, 845, 910, 956, 1183, 1195, 1300, 1673, 1690, 1820, 2275, 2366, 2390, 3107, 3346, 3380, 4225, 4550, 4732, 4780, 5915, 5975, 6214, 6692, 8365, 8450, 9100, 11830, 11950, 12428, 15535, 16730, 16900, 21749, 23660, 23900, 29575, 31070, 33460, 40391, 41825, 43498, 59150, 62140, 77675, 80782, 83650, 86996, 108745, 118300, 155350, 161564, 167300, 201955, 217490, 282737, 310700, 403910, 434980, 543725, 565474, 807820, 1009775, 1087450, 1130948, 1413685, 2019550, 2174900, 2827370, 4039100, 5654740, 7068425, 14136850, 28273700]

約数ペア:

[(1, 28273700), (2, 14136850), (4, 7068425), (5, 5654740), (7, 4039100), (10, 2827370), (13, 2174900), (14, 2019550), (20, 1413685), (25, 1130948), (26, 1087450), (28, 1009775), (35, 807820), (50, 565474), (52, 543725), (65, 434980), (70, 403910), (91, 310700), (100, 282737), (130, 217490), (140, 201955), (169, 167300), (175, 161564), (182, 155350), (239, 118300), (260, 108745), (325, 86996), (338, 83650), (350, 80782), (364, 77675), (455, 62140), (478, 59150), (650, 43498), (676, 41825), (700, 40391), (845, 33460), (910, 31070), (956, 29575), (1183, 23900), (1195, 23660), (1300, 21749), (1673, 16900), (1690, 16730), (1820, 15535), (2275, 12428), (2366, 11950), (2390, 11830), (3107, 9100), (3346, 8450), (3380, 8365), (4225, 6692), (4550, 6214), (4732, 5975), (4780, 5915)]