28432640

素因数分解:

$2^8\times 5^1\times {\mathrm{97}}^1\times {\mathrm{229}}^1$

素因数の和:347

約数の個数: 72

約数和(自身を含む): 69107640

約数和(自身を除く): 40675000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 128, 160, 194, 229, 256, 320, 388, 458, 485, 640, 776, 916, 970, 1145, 1280, 1552, 1832, 1940, 2290, 3104, 3664, 3880, 4580, 6208, 7328, 7760, 9160, 12416, 14656, 15520, 18320, 22213, 24832, 29312, 31040, 36640, 44426, 58624, 62080, 73280, 88852, 111065, 124160, 146560, 177704, 222130, 293120, 355408, 444260, 710816, 888520, 1421632, 1777040, 2843264, 3554080, 5686528, 7108160, 14216320, 28432640]

約数ペア:

[(1, 28432640), (2, 14216320), (4, 7108160), (5, 5686528), (8, 3554080), (10, 2843264), (16, 1777040), (20, 1421632), (32, 888520), (40, 710816), (64, 444260), (80, 355408), (97, 293120), (128, 222130), (160, 177704), (194, 146560), (229, 124160), (256, 111065), (320, 88852), (388, 73280), (458, 62080), (485, 58624), (640, 44426), (776, 36640), (916, 31040), (970, 29312), (1145, 24832), (1280, 22213), (1552, 18320), (1832, 15520), (1940, 14656), (2290, 12416), (3104, 9160), (3664, 7760), (3880, 7328), (4580, 6208)]