77457780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{1489}}^1$

素因数の和:1538

約数の個数: 108

約数和(自身を含む): 249756780

約数和(自身を除く): 172299000

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 289, 306, 340, 510, 578, 612, 765, 867, 1020, 1156, 1445, 1489, 1530, 1734, 2601, 2890, 2978, 3060, 3468, 4335, 4467, 5202, 5780, 5956, 7445, 8670, 8934, 10404, 13005, 13401, 14890, 17340, 17868, 22335, 25313, 26010, 26802, 29780, 44670, 50626, 52020, 53604, 67005, 75939, 89340, 101252, 126565, 134010, 151878, 227817, 253130, 268020, 303756, 379695, 430321, 455634, 506260, 759390, 860642, 911268, 1139085, 1290963, 1518780, 1721284, 2151605, 2278170, 2581926, 3872889, 4303210, 4556340, 5163852, 6454815, 7745778, 8606420, 12909630, 15491556, 19364445, 25819260, 38728890, 77457780]

約数ペア:

[(1, 77457780), (2, 38728890), (3, 25819260), (4, 19364445), (5, 15491556), (6, 12909630), (9, 8606420), (10, 7745778), (12, 6454815), (15, 5163852), (17, 4556340), (18, 4303210), (20, 3872889), (30, 2581926), (34, 2278170), (36, 2151605), (45, 1721284), (51, 1518780), (60, 1290963), (68, 1139085), (85, 911268), (90, 860642), (102, 759390), (153, 506260), (170, 455634), (180, 430321), (204, 379695), (255, 303756), (289, 268020), (306, 253130), (340, 227817), (510, 151878), (578, 134010), (612, 126565), (765, 101252), (867, 89340), (1020, 75939), (1156, 67005), (1445, 53604), (1489, 52020), (1530, 50626), (1734, 44670), (2601, 29780), (2890, 26802), (2978, 26010), (3060, 25313), (3468, 22335), (4335, 17868), (4467, 17340), (5202, 14890), (5780, 13401), (5956, 13005), (7445, 10404), (8670, 8934)]