40820740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:205

約数の個数: 96

約数和(自身を含む): 97977600

約数和(自身を除く): 57156860

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 71, 76, 85, 89, 95, 142, 170, 178, 190, 284, 323, 340, 355, 356, 380, 445, 646, 710, 890, 1207, 1292, 1349, 1420, 1513, 1615, 1691, 1780, 2414, 2698, 3026, 3230, 3382, 4828, 5396, 6035, 6052, 6319, 6460, 6745, 6764, 7565, 8455, 12070, 12638, 13490, 15130, 16910, 22933, 24140, 25276, 26980, 28747, 30260, 31595, 33820, 45866, 57494, 63190, 91732, 107423, 114665, 114988, 120061, 126380, 143735, 214846, 229330, 240122, 287470, 429692, 458660, 480244, 537115, 574940, 600305, 1074230, 1200610, 2041037, 2148460, 2401220, 4082074, 8164148, 10205185, 20410370, 40820740]

約数ペア:

[(1, 40820740), (2, 20410370), (4, 10205185), (5, 8164148), (10, 4082074), (17, 2401220), (19, 2148460), (20, 2041037), (34, 1200610), (38, 1074230), (68, 600305), (71, 574940), (76, 537115), (85, 480244), (89, 458660), (95, 429692), (142, 287470), (170, 240122), (178, 229330), (190, 214846), (284, 143735), (323, 126380), (340, 120061), (355, 114988), (356, 114665), (380, 107423), (445, 91732), (646, 63190), (710, 57494), (890, 45866), (1207, 33820), (1292, 31595), (1349, 30260), (1420, 28747), (1513, 26980), (1615, 25276), (1691, 24140), (1780, 22933), (2414, 16910), (2698, 15130), (3026, 13490), (3230, 12638), (3382, 12070), (4828, 8455), (5396, 7565), (6035, 6764), (6052, 6745), (6319, 6460)]