681796640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{269}}^1$

素因数の和:395

約数の個数: 192

約数和(自身を含む): 1933424640

約数和(自身を除く): 1251628000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 70, 73, 80, 112, 124, 140, 146, 155, 160, 217, 224, 248, 269, 280, 292, 310, 365, 434, 496, 511, 538, 560, 584, 620, 730, 868, 992, 1022, 1076, 1085, 1120, 1168, 1240, 1345, 1460, 1736, 1883, 2044, 2152, 2170, 2263, 2336, 2480, 2555, 2690, 2920, 3472, 3766, 4088, 4304, 4340, 4526, 4960, 5110, 5380, 5840, 6944, 7532, 8176, 8339, 8608, 8680, 9052, 9415, 10220, 10760, 11315, 11680, 15064, 15841, 16352, 16678, 17360, 18104, 18830, 19637, 20440, 21520, 22630, 30128, 31682, 33356, 34720, 36208, 37660, 39274, 40880, 41695, 43040, 45260, 58373, 60256, 63364, 66712, 72416, 75320, 78548, 79205, 81760, 83390, 90520, 98185, 116746, 126728, 133424, 137459, 150640, 157096, 158410, 166780, 181040, 196370, 233492, 253456, 266848, 274918, 291865, 301280, 314192, 316820, 333560, 362080, 392740, 466984, 506912, 549836, 583730, 608747, 628384, 633640, 667120, 687295, 785480, 933968, 1099672, 1167460, 1217494, 1267280, 1334240, 1374590, 1570960, 1867936, 2199344, 2334920, 2434988, 2534560, 2749180, 3043735, 3141920, 4261229, 4398688, 4669840, 4869976, 5498360, 6087470, 8522458, 9339680, 9739952, 10996720, 12174940, 17044916, 19479904, 21306145, 21993440, 24349880, 34089832, 42612290, 48699760, 68179664, 85224580, 97399520, 136359328, 170449160, 340898320, 681796640]

約数ペア:

[(1, 681796640), (2, 340898320), (4, 170449160), (5, 136359328), (7, 97399520), (8, 85224580), (10, 68179664), (14, 48699760), (16, 42612290), (20, 34089832), (28, 24349880), (31, 21993440), (32, 21306145), (35, 19479904), (40, 17044916), (56, 12174940), (62, 10996720), (70, 9739952), (73, 9339680), (80, 8522458), (112, 6087470), (124, 5498360), (140, 4869976), (146, 4669840), (155, 4398688), (160, 4261229), (217, 3141920), (224, 3043735), (248, 2749180), (269, 2534560), (280, 2434988), (292, 2334920), (310, 2199344), (365, 1867936), (434, 1570960), (496, 1374590), (511, 1334240), (538, 1267280), (560, 1217494), (584, 1167460), (620, 1099672), (730, 933968), (868, 785480), (992, 687295), (1022, 667120), (1076, 633640), (1085, 628384), (1120, 608747), (1168, 583730), (1240, 549836), (1345, 506912), (1460, 466984), (1736, 392740), (1883, 362080), (2044, 333560), (2152, 316820), (2170, 314192), (2263, 301280), (2336, 291865), (2480, 274918), (2555, 266848), (2690, 253456), (2920, 233492), (3472, 196370), (3766, 181040), (4088, 166780), (4304, 158410), (4340, 157096), (4526, 150640), (4960, 137459), (5110, 133424), (5380, 126728), (5840, 116746), (6944, 98185), (7532, 90520), (8176, 83390), (8339, 81760), (8608, 79205), (8680, 78548), (9052, 75320), (9415, 72416), (10220, 66712), (10760, 63364), (11315, 60256), (11680, 58373), (15064, 45260), (15841, 43040), (16352, 41695), (16678, 40880), (17360, 39274), (18104, 37660), (18830, 36208), (19637, 34720), (20440, 33356), (21520, 31682), (22630, 30128)]