153298720

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^2\times {\mathrm{997}}^1$

素因数の和:1074

約数の個数: 72

約数和(自身を含む): 374603292

約数和(自身を除く): 221304572

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 961, 992, 997, 1240, 1922, 1994, 2480, 3844, 3988, 4805, 4960, 4985, 7688, 7976, 9610, 9970, 15376, 15952, 19220, 19940, 30752, 30907, 31904, 38440, 39880, 61814, 76880, 79760, 123628, 153760, 154535, 159520, 247256, 309070, 494512, 618140, 958117, 989024, 1236280, 1916234, 2472560, 3832468, 4790585, 4945120, 7664936, 9581170, 15329872, 19162340, 30659744, 38324680, 76649360, 153298720]

約数ペア:

[(1, 153298720), (2, 76649360), (4, 38324680), (5, 30659744), (8, 19162340), (10, 15329872), (16, 9581170), (20, 7664936), (31, 4945120), (32, 4790585), (40, 3832468), (62, 2472560), (80, 1916234), (124, 1236280), (155, 989024), (160, 958117), (248, 618140), (310, 494512), (496, 309070), (620, 247256), (961, 159520), (992, 154535), (997, 153760), (1240, 123628), (1922, 79760), (1994, 76880), (2480, 61814), (3844, 39880), (3988, 38440), (4805, 31904), (4960, 30907), (4985, 30752), (7688, 19940), (7976, 19220), (9610, 15952), (9970, 15376)]