19559775

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{29}}^1$

素因数の和:105

約数の個数: 72

約数和(自身を含む): 37028880

約数和(自身を除く): 17469105

約数列:

[1, 3, 5, 15, 17, 23, 25, 29, 51, 69, 75, 85, 87, 115, 145, 255, 345, 391, 425, 435, 493, 529, 575, 667, 725, 1173, 1275, 1479, 1587, 1725, 1955, 2001, 2175, 2465, 2645, 3335, 5865, 7395, 7935, 8993, 9775, 10005, 11339, 12325, 13225, 15341, 16675, 26979, 29325, 34017, 36975, 39675, 44965, 46023, 50025, 56695, 76705, 134895, 170085, 224825, 230115, 260797, 283475, 383525, 674475, 782391, 850425, 1150575, 1303985, 3911955, 6519925, 19559775]

約数ペア:

[(1, 19559775), (3, 6519925), (5, 3911955), (15, 1303985), (17, 1150575), (23, 850425), (25, 782391), (29, 674475), (51, 383525), (69, 283475), (75, 260797), (85, 230115), (87, 224825), (115, 170085), (145, 134895), (255, 76705), (345, 56695), (391, 50025), (425, 46023), (435, 44965), (493, 39675), (529, 36975), (575, 34017), (667, 29325), (725, 26979), (1173, 16675), (1275, 15341), (1479, 13225), (1587, 12325), (1725, 11339), (1955, 10005), (2001, 9775), (2175, 8993), (2465, 7935), (2645, 7395), (3335, 5865)]