208569720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{331}}^1$

素因数の和:493

約数の個数: 128

約数和(自身を含む): 645408000

約数和(自身を除く): 436838280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 59, 60, 89, 118, 120, 177, 178, 236, 267, 295, 331, 354, 356, 445, 472, 534, 590, 662, 708, 712, 885, 890, 993, 1068, 1180, 1324, 1335, 1416, 1655, 1770, 1780, 1986, 2136, 2360, 2648, 2670, 3310, 3540, 3560, 3972, 4965, 5251, 5340, 6620, 7080, 7944, 9930, 10502, 10680, 13240, 15753, 19529, 19860, 21004, 26255, 29459, 31506, 39058, 39720, 42008, 52510, 58587, 58918, 63012, 78116, 78765, 88377, 97645, 105020, 117174, 117836, 126024, 147295, 156232, 157530, 176754, 195290, 210040, 234348, 235672, 292935, 294590, 315060, 353508, 390580, 441885, 468696, 585870, 589180, 630120, 707016, 781160, 883770, 1171740, 1178360, 1738081, 1767540, 2343480, 3476162, 3535080, 5214243, 6952324, 8690405, 10428486, 13904648, 17380810, 20856972, 26071215, 34761620, 41713944, 52142430, 69523240, 104284860, 208569720]

約数ペア:

[(1, 208569720), (2, 104284860), (3, 69523240), (4, 52142430), (5, 41713944), (6, 34761620), (8, 26071215), (10, 20856972), (12, 17380810), (15, 13904648), (20, 10428486), (24, 8690405), (30, 6952324), (40, 5214243), (59, 3535080), (60, 3476162), (89, 2343480), (118, 1767540), (120, 1738081), (177, 1178360), (178, 1171740), (236, 883770), (267, 781160), (295, 707016), (331, 630120), (354, 589180), (356, 585870), (445, 468696), (472, 441885), (534, 390580), (590, 353508), (662, 315060), (708, 294590), (712, 292935), (885, 235672), (890, 234348), (993, 210040), (1068, 195290), (1180, 176754), (1324, 157530), (1335, 156232), (1416, 147295), (1655, 126024), (1770, 117836), (1780, 117174), (1986, 105020), (2136, 97645), (2360, 88377), (2648, 78765), (2670, 78116), (3310, 63012), (3540, 58918), (3560, 58587), (3972, 52510), (4965, 42008), (5251, 39720), (5340, 39058), (6620, 31506), (7080, 29459), (7944, 26255), (9930, 21004), (10502, 19860), (10680, 19529), (13240, 15753)]