1991477280

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{319147}}^1$

素因数の和:319178

約数の個数: 96

約数和(自身を含む): 6755724864

約数和(自身を除く): 4764247584

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 65, 78, 80, 96, 104, 120, 130, 156, 160, 195, 208, 240, 260, 312, 390, 416, 480, 520, 624, 780, 1040, 1248, 1560, 2080, 3120, 6240, 319147, 638294, 957441, 1276588, 1595735, 1914882, 2553176, 3191470, 3829764, 4148911, 4787205, 5106352, 6382940, 7659528, 8297822, 9574410, 10212704, 12446733, 12765880, 15319056, 16595644, 19148820, 20744555, 24893466, 25531760, 30638112, 33191288, 38297640, 41489110, 49786932, 51063520, 62233665, 66382576, 76595280, 82978220, 99573864, 124467330, 132765152, 153190560, 165956440, 199147728, 248934660, 331912880, 398295456, 497869320, 663825760, 995738640, 1991477280]

約数ペア:

[(1, 1991477280), (2, 995738640), (3, 663825760), (4, 497869320), (5, 398295456), (6, 331912880), (8, 248934660), (10, 199147728), (12, 165956440), (13, 153190560), (15, 132765152), (16, 124467330), (20, 99573864), (24, 82978220), (26, 76595280), (30, 66382576), (32, 62233665), (39, 51063520), (40, 49786932), (48, 41489110), (52, 38297640), (60, 33191288), (65, 30638112), (78, 25531760), (80, 24893466), (96, 20744555), (104, 19148820), (120, 16595644), (130, 15319056), (156, 12765880), (160, 12446733), (195, 10212704), (208, 9574410), (240, 8297822), (260, 7659528), (312, 6382940), (390, 5106352), (416, 4787205), (480, 4148911), (520, 3829764), (624, 3191470), (780, 2553176), (1040, 1914882), (1248, 1595735), (1560, 1276588), (2080, 957441), (3120, 638294), (6240, 319147)]