388217025

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{12973}}^1$

素因数の和:13015

約数の個数: 72

約数和(自身を含む): 836563520

約数和(自身を除く): 448346495

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 25, 35, 45, 57, 63, 75, 95, 105, 133, 171, 175, 225, 285, 315, 399, 475, 525, 665, 855, 1197, 1425, 1575, 1995, 3325, 4275, 5985, 9975, 12973, 29925, 38919, 64865, 90811, 116757, 194595, 246487, 272433, 324325, 454055, 583785, 739461, 817299, 972975, 1232435, 1362165, 1725409, 2218383, 2270275, 2918925, 3697305, 4086495, 5176227, 6162175, 6810825, 8627045, 11091915, 15528681, 18486525, 20432475, 25881135, 43135225, 55459575, 77643405, 129405675, 388217025]

約数ペア:

[(1, 388217025), (3, 129405675), (5, 77643405), (7, 55459575), (9, 43135225), (15, 25881135), (19, 20432475), (21, 18486525), (25, 15528681), (35, 11091915), (45, 8627045), (57, 6810825), (63, 6162175), (75, 5176227), (95, 4086495), (105, 3697305), (133, 2918925), (171, 2270275), (175, 2218383), (225, 1725409), (285, 1362165), (315, 1232435), (399, 972975), (475, 817299), (525, 739461), (665, 583785), (855, 454055), (1197, 324325), (1425, 272433), (1575, 246487), (1995, 194595), (3325, 116757), (4275, 90811), (5985, 64865), (9975, 38919), (12973, 29925)]