72880020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{467}}^1$

素因数の和:519

約数の個数: 144

約数和(自身を含む): 241375680

約数和(自身を除く): 168495660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 45, 51, 54, 60, 68, 85, 90, 102, 108, 135, 153, 170, 180, 204, 255, 270, 289, 306, 340, 459, 467, 510, 540, 578, 612, 765, 867, 918, 934, 1020, 1156, 1401, 1445, 1530, 1734, 1836, 1868, 2295, 2335, 2601, 2802, 2890, 3060, 3468, 4203, 4335, 4590, 4670, 5202, 5604, 5780, 7005, 7803, 7939, 8406, 8670, 9180, 9340, 10404, 12609, 13005, 14010, 15606, 15878, 16812, 17340, 21015, 23817, 25218, 26010, 28020, 31212, 31756, 39015, 39695, 42030, 47634, 50436, 52020, 63045, 71451, 78030, 79390, 84060, 95268, 119085, 126090, 134963, 142902, 156060, 158780, 214353, 238170, 252180, 269926, 285804, 357255, 404889, 428706, 476340, 539852, 674815, 714510, 809778, 857412, 1071765, 1214667, 1349630, 1429020, 1619556, 2024445, 2143530, 2429334, 2699260, 3644001, 4048890, 4287060, 4858668, 6073335, 7288002, 8097780, 12146670, 14576004, 18220005, 24293340, 36440010, 72880020]

約数ペア:

[(1, 72880020), (2, 36440010), (3, 24293340), (4, 18220005), (5, 14576004), (6, 12146670), (9, 8097780), (10, 7288002), (12, 6073335), (15, 4858668), (17, 4287060), (18, 4048890), (20, 3644001), (27, 2699260), (30, 2429334), (34, 2143530), (36, 2024445), (45, 1619556), (51, 1429020), (54, 1349630), (60, 1214667), (68, 1071765), (85, 857412), (90, 809778), (102, 714510), (108, 674815), (135, 539852), (153, 476340), (170, 428706), (180, 404889), (204, 357255), (255, 285804), (270, 269926), (289, 252180), (306, 238170), (340, 214353), (459, 158780), (467, 156060), (510, 142902), (540, 134963), (578, 126090), (612, 119085), (765, 95268), (867, 84060), (918, 79390), (934, 78030), (1020, 71451), (1156, 63045), (1401, 52020), (1445, 50436), (1530, 47634), (1734, 42030), (1836, 39695), (1868, 39015), (2295, 31756), (2335, 31212), (2601, 28020), (2802, 26010), (2890, 25218), (3060, 23817), (3468, 21015), (4203, 17340), (4335, 16812), (4590, 15878), (4670, 15606), (5202, 14010), (5604, 13005), (5780, 12609), (7005, 10404), (7803, 9340), (7939, 9180), (8406, 8670)]