1320234975

素因数分解:

$3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{991}}^1$

素因数の和:1229

約数の個数: 72

約数和(自身を含む): 2456223744

約数和(自身を除く): 1135988769

約数列:

[1, 3, 5, 9, 15, 25, 31, 45, 75, 93, 155, 191, 225, 279, 465, 573, 775, 955, 991, 1395, 1719, 2325, 2865, 2973, 4775, 4955, 5921, 6975, 8595, 8919, 14325, 14865, 17763, 24775, 29605, 30721, 42975, 44595, 53289, 74325, 88815, 92163, 148025, 153605, 189281, 222975, 266445, 276489, 444075, 460815, 567843, 768025, 946405, 1332225, 1382445, 1703529, 2304075, 2839215, 4732025, 5867711, 6912225, 8517645, 14196075, 17603133, 29338555, 42588225, 52809399, 88015665, 146692775, 264046995, 440078325, 1320234975]

約数ペア:

[(1, 1320234975), (3, 440078325), (5, 264046995), (9, 146692775), (15, 88015665), (25, 52809399), (31, 42588225), (45, 29338555), (75, 17603133), (93, 14196075), (155, 8517645), (191, 6912225), (225, 5867711), (279, 4732025), (465, 2839215), (573, 2304075), (775, 1703529), (955, 1382445), (991, 1332225), (1395, 946405), (1719, 768025), (2325, 567843), (2865, 460815), (2973, 444075), (4775, 276489), (4955, 266445), (5921, 222975), (6975, 189281), (8595, 153605), (8919, 148025), (14325, 92163), (14865, 88815), (17763, 74325), (24775, 53289), (29605, 44595), (30721, 42975)]