19483420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:211

約数の個数: 72

約数和(自身を含む): 45983952

約数和(自身を除く): 26500532

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 83, 97, 110, 121, 166, 194, 220, 242, 332, 388, 415, 484, 485, 605, 830, 913, 970, 1067, 1210, 1660, 1826, 1940, 2134, 2420, 3652, 4268, 4565, 5335, 8051, 9130, 10043, 10670, 11737, 16102, 18260, 20086, 21340, 23474, 32204, 40172, 40255, 46948, 50215, 58685, 80510, 88561, 100430, 117370, 161020, 177122, 200860, 234740, 354244, 442805, 885610, 974171, 1771220, 1948342, 3896684, 4870855, 9741710, 19483420]

約数ペア:

[(1, 19483420), (2, 9741710), (4, 4870855), (5, 3896684), (10, 1948342), (11, 1771220), (20, 974171), (22, 885610), (44, 442805), (55, 354244), (83, 234740), (97, 200860), (110, 177122), (121, 161020), (166, 117370), (194, 100430), (220, 88561), (242, 80510), (332, 58685), (388, 50215), (415, 46948), (484, 40255), (485, 40172), (605, 32204), (830, 23474), (913, 21340), (970, 20086), (1067, 18260), (1210, 16102), (1660, 11737), (1826, 10670), (1940, 10043), (2134, 9130), (2420, 8051), (3652, 5335), (4268, 4565)]