245647220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1901}}^1$

素因数の和:2001

約数の個数: 96

約数和(自身を含む): 644184576

約数和(自身を除く): 398537356

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 71, 91, 130, 140, 142, 182, 260, 284, 355, 364, 455, 497, 710, 910, 923, 994, 1420, 1820, 1846, 1901, 1988, 2485, 3692, 3802, 4615, 4970, 6461, 7604, 9230, 9505, 9940, 12922, 13307, 18460, 19010, 24713, 25844, 26614, 32305, 38020, 49426, 53228, 64610, 66535, 98852, 123565, 129220, 133070, 134971, 172991, 247130, 266140, 269942, 345982, 494260, 539884, 674855, 691964, 864955, 944797, 1349710, 1729910, 1754623, 1889594, 2699420, 3459820, 3509246, 3779188, 4723985, 7018492, 8773115, 9447970, 12282361, 17546230, 18895940, 24564722, 35092460, 49129444, 61411805, 122823610, 245647220]

約数ペア:

[(1, 245647220), (2, 122823610), (4, 61411805), (5, 49129444), (7, 35092460), (10, 24564722), (13, 18895940), (14, 17546230), (20, 12282361), (26, 9447970), (28, 8773115), (35, 7018492), (52, 4723985), (65, 3779188), (70, 3509246), (71, 3459820), (91, 2699420), (130, 1889594), (140, 1754623), (142, 1729910), (182, 1349710), (260, 944797), (284, 864955), (355, 691964), (364, 674855), (455, 539884), (497, 494260), (710, 345982), (910, 269942), (923, 266140), (994, 247130), (1420, 172991), (1820, 134971), (1846, 133070), (1901, 129220), (1988, 123565), (2485, 98852), (3692, 66535), (3802, 64610), (4615, 53228), (4970, 49426), (6461, 38020), (7604, 32305), (9230, 26614), (9505, 25844), (9940, 24713), (12922, 19010), (13307, 18460)]