253980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1$

素因数の和:115

約数の個数: 72

約数和(自身を含む): 825552

約数和(自身を除く): 571572

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 83, 85, 90, 102, 153, 166, 170, 180, 204, 249, 255, 306, 332, 340, 415, 498, 510, 612, 747, 765, 830, 996, 1020, 1245, 1411, 1494, 1530, 1660, 2490, 2822, 2988, 3060, 3735, 4233, 4980, 5644, 7055, 7470, 8466, 12699, 14110, 14940, 16932, 21165, 25398, 28220, 42330, 50796, 63495, 84660, 126990, 253980]

約数ペア:

[(1, 253980), (2, 126990), (3, 84660), (4, 63495), (5, 50796), (6, 42330), (9, 28220), (10, 25398), (12, 21165), (15, 16932), (17, 14940), (18, 14110), (20, 12699), (30, 8466), (34, 7470), (36, 7055), (45, 5644), (51, 4980), (60, 4233), (68, 3735), (83, 3060), (85, 2988), (90, 2822), (102, 2490), (153, 1660), (166, 1530), (170, 1494), (180, 1411), (204, 1245), (249, 1020), (255, 996), (306, 830), (332, 765), (340, 747), (415, 612), (498, 510)]