18246780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:188

約数の個数: 144

約数和(自身を含む): 60147360

約数和(自身を除く): 41900580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 67, 68, 85, 89, 90, 102, 134, 153, 170, 178, 180, 201, 204, 255, 267, 268, 306, 335, 340, 356, 402, 445, 510, 534, 603, 612, 670, 765, 801, 804, 890, 1005, 1020, 1068, 1139, 1206, 1335, 1340, 1513, 1530, 1602, 1780, 2010, 2278, 2412, 2670, 3015, 3026, 3060, 3204, 3417, 4005, 4020, 4539, 4556, 5340, 5695, 5963, 6030, 6052, 6834, 7565, 8010, 9078, 10251, 11390, 11926, 12060, 13617, 13668, 15130, 16020, 17085, 17889, 18156, 20502, 22695, 22780, 23852, 27234, 29815, 30260, 34170, 35778, 41004, 45390, 51255, 53667, 54468, 59630, 68085, 68340, 71556, 89445, 90780, 101371, 102510, 107334, 119260, 136170, 178890, 202742, 205020, 214668, 268335, 272340, 304113, 357780, 405484, 506855, 536670, 608226, 912339, 1013710, 1073340, 1216452, 1520565, 1824678, 2027420, 3041130, 3649356, 4561695, 6082260, 9123390, 18246780]

約数ペア:

[(1, 18246780), (2, 9123390), (3, 6082260), (4, 4561695), (5, 3649356), (6, 3041130), (9, 2027420), (10, 1824678), (12, 1520565), (15, 1216452), (17, 1073340), (18, 1013710), (20, 912339), (30, 608226), (34, 536670), (36, 506855), (45, 405484), (51, 357780), (60, 304113), (67, 272340), (68, 268335), (85, 214668), (89, 205020), (90, 202742), (102, 178890), (134, 136170), (153, 119260), (170, 107334), (178, 102510), (180, 101371), (201, 90780), (204, 89445), (255, 71556), (267, 68340), (268, 68085), (306, 59630), (335, 54468), (340, 53667), (356, 51255), (402, 45390), (445, 41004), (510, 35778), (534, 34170), (603, 30260), (612, 29815), (670, 27234), (765, 23852), (801, 22780), (804, 22695), (890, 20502), (1005, 18156), (1020, 17889), (1068, 17085), (1139, 16020), (1206, 15130), (1335, 13668), (1340, 13617), (1513, 12060), (1530, 11926), (1602, 11390), (1780, 10251), (2010, 9078), (2278, 8010), (2412, 7565), (2670, 6834), (3015, 6052), (3026, 6030), (3060, 5963), (3204, 5695), (3417, 5340), (4005, 4556), (4020, 4539)]