720046520

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{151}}^1\times {\mathrm{1229}}^1$

素因数の和:1488

約数の個数: 64

約数和(自身を含む): 1648987200

約数和(自身を除く): 928940680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 151, 194, 302, 388, 485, 604, 755, 776, 970, 1208, 1229, 1510, 1940, 2458, 3020, 3880, 4916, 6040, 6145, 9832, 12290, 14647, 24580, 29294, 49160, 58588, 73235, 117176, 119213, 146470, 185579, 238426, 292940, 371158, 476852, 585880, 596065, 742316, 927895, 953704, 1192130, 1484632, 1855790, 2384260, 3711580, 4768520, 7423160, 18001163, 36002326, 72004652, 90005815, 144009304, 180011630, 360023260, 720046520]

約数ペア:

[(1, 720046520), (2, 360023260), (4, 180011630), (5, 144009304), (8, 90005815), (10, 72004652), (20, 36002326), (40, 18001163), (97, 7423160), (151, 4768520), (194, 3711580), (302, 2384260), (388, 1855790), (485, 1484632), (604, 1192130), (755, 953704), (776, 927895), (970, 742316), (1208, 596065), (1229, 585880), (1510, 476852), (1940, 371158), (2458, 292940), (3020, 238426), (3880, 185579), (4916, 146470), (6040, 119213), (6145, 117176), (9832, 73235), (12290, 58588), (14647, 49160), (24580, 29294)]