720190890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{27689}}^1$

素因数の和:27736

約数の個数: 72

約数和(自身を含む): 1989194220

約数和(自身を除く): 1269003330

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 85, 90, 102, 153, 170, 255, 289, 306, 510, 578, 765, 867, 1445, 1530, 1734, 2601, 2890, 4335, 5202, 8670, 13005, 26010, 27689, 55378, 83067, 138445, 166134, 249201, 276890, 415335, 470713, 498402, 830670, 941426, 1246005, 1412139, 2353565, 2492010, 2824278, 4236417, 4707130, 7060695, 8002121, 8472834, 14121390, 16004242, 21182085, 24006363, 40010605, 42364170, 48012726, 72019089, 80021210, 120031815, 144038178, 240063630, 360095445, 720190890]

約数ペア:

[(1, 720190890), (2, 360095445), (3, 240063630), (5, 144038178), (6, 120031815), (9, 80021210), (10, 72019089), (15, 48012726), (17, 42364170), (18, 40010605), (30, 24006363), (34, 21182085), (45, 16004242), (51, 14121390), (85, 8472834), (90, 8002121), (102, 7060695), (153, 4707130), (170, 4236417), (255, 2824278), (289, 2492010), (306, 2353565), (510, 1412139), (578, 1246005), (765, 941426), (867, 830670), (1445, 498402), (1530, 470713), (1734, 415335), (2601, 276890), (2890, 249201), (4335, 166134), (5202, 138445), (8670, 83067), (13005, 55378), (26010, 27689)]