20197802085

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{15383}}^1$

素因数の和:15698

約数の個数: 64

約数和(自身を含む): 36153630720

約数和(自身を除く): 15955828635

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 85, 95, 255, 271, 285, 323, 813, 969, 1355, 1615, 4065, 4607, 4845, 5149, 13821, 15383, 15447, 23035, 25745, 46149, 69105, 76915, 77235, 87533, 230745, 261511, 262599, 292277, 437665, 784533, 876831, 1307555, 1312995, 1461385, 3922665, 4168793, 4384155, 4968709, 12506379, 14906127, 20843965, 24843545, 62531895, 70869481, 74530635, 79207067, 212608443, 237621201, 354347405, 396035335, 1063042215, 1188106005, 1346520139, 4039560417, 6732600695, 20197802085]

約数ペア:

[(1, 20197802085), (3, 6732600695), (5, 4039560417), (15, 1346520139), (17, 1188106005), (19, 1063042215), (51, 396035335), (57, 354347405), (85, 237621201), (95, 212608443), (255, 79207067), (271, 74530635), (285, 70869481), (323, 62531895), (813, 24843545), (969, 20843965), (1355, 14906127), (1615, 12506379), (4065, 4968709), (4607, 4384155), (4845, 4168793), (5149, 3922665), (13821, 1461385), (15383, 1312995), (15447, 1307555), (23035, 876831), (25745, 784533), (46149, 437665), (69105, 292277), (76915, 262599), (77235, 261511), (87533, 230745)]