18201780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{911}}^1$

素因数の和:966

約数の個数: 96

約数和(自身を含む): 58222080

約数和(自身を除く): 40020300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 37, 45, 54, 60, 74, 90, 108, 111, 135, 148, 180, 185, 222, 270, 333, 370, 444, 540, 555, 666, 740, 911, 999, 1110, 1332, 1665, 1822, 1998, 2220, 2733, 3330, 3644, 3996, 4555, 4995, 5466, 6660, 8199, 9110, 9990, 10932, 13665, 16398, 18220, 19980, 24597, 27330, 32796, 33707, 40995, 49194, 54660, 67414, 81990, 98388, 101121, 122985, 134828, 163980, 168535, 202242, 245970, 303363, 337070, 404484, 491940, 505605, 606726, 674140, 910089, 1011210, 1213452, 1516815, 1820178, 2022420, 3033630, 3640356, 4550445, 6067260, 9100890, 18201780]

約数ペア:

[(1, 18201780), (2, 9100890), (3, 6067260), (4, 4550445), (5, 3640356), (6, 3033630), (9, 2022420), (10, 1820178), (12, 1516815), (15, 1213452), (18, 1011210), (20, 910089), (27, 674140), (30, 606726), (36, 505605), (37, 491940), (45, 404484), (54, 337070), (60, 303363), (74, 245970), (90, 202242), (108, 168535), (111, 163980), (135, 134828), (148, 122985), (180, 101121), (185, 98388), (222, 81990), (270, 67414), (333, 54660), (370, 49194), (444, 40995), (540, 33707), (555, 32796), (666, 27330), (740, 24597), (911, 19980), (999, 18220), (1110, 16398), (1332, 13665), (1665, 10932), (1822, 9990), (1998, 9110), (2220, 8199), (2733, 6660), (3330, 5466), (3644, 4995), (3996, 4555)]