20456836160

素因数分解:

$2^6\times 5^1\times {\mathrm{659}}^1\times {\mathrm{97007}}^1$

素因数の和:97683

約数の個数: 56

約数和(自身を含む): 48787263360

約数和(自身を除く): 28330427200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 659, 1318, 2636, 3295, 5272, 6590, 10544, 13180, 21088, 26360, 42176, 52720, 97007, 105440, 194014, 210880, 388028, 485035, 776056, 970070, 1552112, 1940140, 3104224, 3880280, 6208448, 7760560, 15521120, 31042240, 63927613, 127855226, 255710452, 319638065, 511420904, 639276130, 1022841808, 1278552260, 2045683616, 2557104520, 4091367232, 5114209040, 10228418080, 20456836160]

約数ペア:

[(1, 20456836160), (2, 10228418080), (4, 5114209040), (5, 4091367232), (8, 2557104520), (10, 2045683616), (16, 1278552260), (20, 1022841808), (32, 639276130), (40, 511420904), (64, 319638065), (80, 255710452), (160, 127855226), (320, 63927613), (659, 31042240), (1318, 15521120), (2636, 7760560), (3295, 6208448), (5272, 3880280), (6590, 3104224), (10544, 1940140), (13180, 1552112), (21088, 970070), (26360, 776056), (42176, 485035), (52720, 388028), (97007, 210880), (105440, 194014)]