388017525

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{5557}}^1$

素因数の和:5603

約数の個数: 72

約数和(自身を含む): 785678880

約数和(自身を除く): 397661355

約数列:

[1, 3, 5, 7, 15, 19, 21, 25, 35, 49, 57, 75, 95, 105, 133, 147, 175, 245, 285, 399, 475, 525, 665, 735, 931, 1225, 1425, 1995, 2793, 3325, 3675, 4655, 5557, 9975, 13965, 16671, 23275, 27785, 38899, 69825, 83355, 105583, 116697, 138925, 194495, 272293, 316749, 416775, 527915, 583485, 739081, 816879, 972475, 1361465, 1583745, 2217243, 2639575, 2917425, 3695405, 4084395, 5173567, 6807325, 7918725, 11086215, 15520701, 18477025, 20421975, 25867835, 55431075, 77603505, 129339175, 388017525]

約数ペア:

[(1, 388017525), (3, 129339175), (5, 77603505), (7, 55431075), (15, 25867835), (19, 20421975), (21, 18477025), (25, 15520701), (35, 11086215), (49, 7918725), (57, 6807325), (75, 5173567), (95, 4084395), (105, 3695405), (133, 2917425), (147, 2639575), (175, 2217243), (245, 1583745), (285, 1361465), (399, 972475), (475, 816879), (525, 739081), (665, 583485), (735, 527915), (931, 416775), (1225, 316749), (1425, 272293), (1995, 194495), (2793, 138925), (3325, 116697), (3675, 105583), (4655, 83355), (5557, 69825), (9975, 38899), (13965, 27785), (16671, 23275)]