640611840

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{7583}}^1$

素因数の和:7620

約数の個数: 160

約数和(自身を含む): 2234428416

約数和(自身を除く): 1593816576

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 64, 66, 80, 88, 96, 110, 120, 128, 132, 160, 165, 176, 192, 220, 240, 256, 264, 320, 330, 352, 384, 440, 480, 512, 528, 640, 660, 704, 768, 880, 960, 1056, 1280, 1320, 1408, 1536, 1760, 1920, 2112, 2560, 2640, 2816, 3520, 3840, 4224, 5280, 5632, 7040, 7583, 7680, 8448, 10560, 14080, 15166, 16896, 21120, 22749, 28160, 30332, 37915, 42240, 45498, 60664, 75830, 83413, 84480, 90996, 113745, 121328, 151660, 166826, 181992, 227490, 242656, 250239, 303320, 333652, 363984, 417065, 454980, 485312, 500478, 606640, 667304, 727968, 834130, 909960, 970624, 1000956, 1213280, 1251195, 1334608, 1455936, 1668260, 1819920, 1941248, 2001912, 2426560, 2502390, 2669216, 2911872, 3336520, 3639840, 3882496, 4003824, 4853120, 5004780, 5338432, 5823744, 6673040, 7279680, 8007648, 9706240, 10009560, 10676864, 11647488, 13346080, 14559360, 16015296, 19412480, 20019120, 21353728, 26692160, 29118720, 32030592, 40038240, 42707456, 53384320, 58237440, 64061184, 80076480, 106768640, 128122368, 160152960, 213537280, 320305920, 640611840]

約数ペア:

[(1, 640611840), (2, 320305920), (3, 213537280), (4, 160152960), (5, 128122368), (6, 106768640), (8, 80076480), (10, 64061184), (11, 58237440), (12, 53384320), (15, 42707456), (16, 40038240), (20, 32030592), (22, 29118720), (24, 26692160), (30, 21353728), (32, 20019120), (33, 19412480), (40, 16015296), (44, 14559360), (48, 13346080), (55, 11647488), (60, 10676864), (64, 10009560), (66, 9706240), (80, 8007648), (88, 7279680), (96, 6673040), (110, 5823744), (120, 5338432), (128, 5004780), (132, 4853120), (160, 4003824), (165, 3882496), (176, 3639840), (192, 3336520), (220, 2911872), (240, 2669216), (256, 2502390), (264, 2426560), (320, 2001912), (330, 1941248), (352, 1819920), (384, 1668260), (440, 1455936), (480, 1334608), (512, 1251195), (528, 1213280), (640, 1000956), (660, 970624), (704, 909960), (768, 834130), (880, 727968), (960, 667304), (1056, 606640), (1280, 500478), (1320, 485312), (1408, 454980), (1536, 417065), (1760, 363984), (1920, 333652), (2112, 303320), (2560, 250239), (2640, 242656), (2816, 227490), (3520, 181992), (3840, 166826), (4224, 151660), (5280, 121328), (5632, 113745), (7040, 90996), (7583, 84480), (7680, 83413), (8448, 75830), (10560, 60664), (14080, 45498), (15166, 42240), (16896, 37915), (21120, 30332), (22749, 28160)]