813173620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{607}}^1\times {\mathrm{1367}}^1$

素因数の和:1997

約数の個数: 72

約数和(自身を含む): 1991195136

約数和(自身を除く): 1178021516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 607, 980, 1214, 1367, 2428, 2734, 3035, 4249, 5468, 6070, 6835, 8498, 9569, 12140, 13670, 16996, 19138, 21245, 27340, 29743, 38276, 42490, 47845, 59486, 66983, 84980, 95690, 118972, 133966, 148715, 191380, 267932, 297430, 334915, 594860, 669830, 829769, 1339660, 1659538, 3319076, 4148845, 5808383, 8297690, 11616766, 16595380, 23233532, 29041915, 40658681, 58083830, 81317362, 116167660, 162634724, 203293405, 406586810, 813173620]

約数ペア:

[(1, 813173620), (2, 406586810), (4, 203293405), (5, 162634724), (7, 116167660), (10, 81317362), (14, 58083830), (20, 40658681), (28, 29041915), (35, 23233532), (49, 16595380), (70, 11616766), (98, 8297690), (140, 5808383), (196, 4148845), (245, 3319076), (490, 1659538), (607, 1339660), (980, 829769), (1214, 669830), (1367, 594860), (2428, 334915), (2734, 297430), (3035, 267932), (4249, 191380), (5468, 148715), (6070, 133966), (6835, 118972), (8498, 95690), (9569, 84980), (12140, 66983), (13670, 59486), (16996, 47845), (19138, 42490), (21245, 38276), (27340, 29743)]