20336175

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:173

約数の個数: 72

約数和(自身を含む): 39461760

約数和(自身を除く): 19125585

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 67, 71, 75, 95, 171, 201, 213, 225, 285, 335, 355, 475, 603, 639, 855, 1005, 1065, 1273, 1349, 1425, 1675, 1775, 3015, 3195, 3819, 4047, 4275, 4757, 5025, 5325, 6365, 6745, 11457, 12141, 14271, 15075, 15975, 19095, 20235, 23785, 31825, 33725, 42813, 57285, 60705, 71355, 90383, 95475, 101175, 118925, 214065, 271149, 286425, 303525, 356775, 451915, 813447, 1070325, 1355745, 2259575, 4067235, 6778725, 20336175]

約数ペア:

[(1, 20336175), (3, 6778725), (5, 4067235), (9, 2259575), (15, 1355745), (19, 1070325), (25, 813447), (45, 451915), (57, 356775), (67, 303525), (71, 286425), (75, 271149), (95, 214065), (171, 118925), (201, 101175), (213, 95475), (225, 90383), (285, 71355), (335, 60705), (355, 57285), (475, 42813), (603, 33725), (639, 31825), (855, 23785), (1005, 20235), (1065, 19095), (1273, 15975), (1349, 15075), (1425, 14271), (1675, 12141), (1775, 11457), (3015, 6745), (3195, 6365), (3819, 5325), (4047, 5025), (4275, 4757)]