72711720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^2$

素因数の和:252

約数の個数: 144

約数和(自身を含む): 252530460

約数和(自身を除く): 179818740

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 30, 34, 36, 40, 45, 51, 60, 68, 72, 85, 90, 102, 109, 120, 136, 153, 170, 180, 204, 218, 255, 306, 327, 340, 360, 408, 436, 510, 545, 612, 654, 680, 765, 872, 981, 1020, 1090, 1224, 1308, 1530, 1635, 1853, 1962, 2040, 2180, 2616, 3060, 3270, 3706, 3924, 4360, 4905, 5559, 6120, 6540, 7412, 7848, 9265, 9810, 11118, 11881, 13080, 14824, 16677, 18530, 19620, 22236, 23762, 27795, 33354, 35643, 37060, 39240, 44472, 47524, 55590, 59405, 66708, 71286, 74120, 83385, 95048, 106929, 111180, 118810, 133416, 142572, 166770, 178215, 201977, 213858, 222360, 237620, 285144, 333540, 356430, 403954, 427716, 475240, 534645, 605931, 667080, 712860, 807908, 855432, 1009885, 1069290, 1211862, 1425720, 1615816, 1817793, 2019770, 2138580, 2423724, 3029655, 3635586, 4039540, 4277160, 4847448, 6059310, 7271172, 8079080, 9088965, 12118620, 14542344, 18177930, 24237240, 36355860, 72711720]

約数ペア:

[(1, 72711720), (2, 36355860), (3, 24237240), (4, 18177930), (5, 14542344), (6, 12118620), (8, 9088965), (9, 8079080), (10, 7271172), (12, 6059310), (15, 4847448), (17, 4277160), (18, 4039540), (20, 3635586), (24, 3029655), (30, 2423724), (34, 2138580), (36, 2019770), (40, 1817793), (45, 1615816), (51, 1425720), (60, 1211862), (68, 1069290), (72, 1009885), (85, 855432), (90, 807908), (102, 712860), (109, 667080), (120, 605931), (136, 534645), (153, 475240), (170, 427716), (180, 403954), (204, 356430), (218, 333540), (255, 285144), (306, 237620), (327, 222360), (340, 213858), (360, 201977), (408, 178215), (436, 166770), (510, 142572), (545, 133416), (612, 118810), (654, 111180), (680, 106929), (765, 95048), (872, 83385), (981, 74120), (1020, 71286), (1090, 66708), (1224, 59405), (1308, 55590), (1530, 47524), (1635, 44472), (1853, 39240), (1962, 37060), (2040, 35643), (2180, 33354), (2616, 27795), (3060, 23762), (3270, 22236), (3706, 19620), (3924, 18530), (4360, 16677), (4905, 14824), (5559, 13080), (6120, 11881), (6540, 11118), (7412, 9810), (7848, 9265)]