18240480

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{239}}^1$

素因数の和:313

約数の個数: 144

約数和(自身を含む): 63685440

約数和(自身を除く): 45444960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 53, 60, 72, 80, 90, 96, 106, 120, 144, 159, 160, 180, 212, 239, 240, 265, 288, 318, 360, 424, 477, 478, 480, 530, 636, 717, 720, 795, 848, 954, 956, 1060, 1195, 1272, 1434, 1440, 1590, 1696, 1908, 1912, 2120, 2151, 2385, 2390, 2544, 2868, 3180, 3585, 3816, 3824, 4240, 4302, 4770, 4780, 5088, 5736, 6360, 7170, 7632, 7648, 8480, 8604, 9540, 9560, 10755, 11472, 12667, 12720, 14340, 15264, 17208, 19080, 19120, 21510, 22944, 25334, 25440, 28680, 34416, 38001, 38160, 38240, 43020, 50668, 57360, 63335, 68832, 76002, 76320, 86040, 101336, 114003, 114720, 126670, 152004, 172080, 190005, 202672, 228006, 253340, 304008, 344160, 380010, 405344, 456012, 506680, 570015, 608016, 760020, 912024, 1013360, 1140030, 1216032, 1520040, 1824048, 2026720, 2280060, 3040080, 3648096, 4560120, 6080160, 9120240, 18240480]

約数ペア:

[(1, 18240480), (2, 9120240), (3, 6080160), (4, 4560120), (5, 3648096), (6, 3040080), (8, 2280060), (9, 2026720), (10, 1824048), (12, 1520040), (15, 1216032), (16, 1140030), (18, 1013360), (20, 912024), (24, 760020), (30, 608016), (32, 570015), (36, 506680), (40, 456012), (45, 405344), (48, 380010), (53, 344160), (60, 304008), (72, 253340), (80, 228006), (90, 202672), (96, 190005), (106, 172080), (120, 152004), (144, 126670), (159, 114720), (160, 114003), (180, 101336), (212, 86040), (239, 76320), (240, 76002), (265, 68832), (288, 63335), (318, 57360), (360, 50668), (424, 43020), (477, 38240), (478, 38160), (480, 38001), (530, 34416), (636, 28680), (717, 25440), (720, 25334), (795, 22944), (848, 21510), (954, 19120), (956, 19080), (1060, 17208), (1195, 15264), (1272, 14340), (1434, 12720), (1440, 12667), (1590, 11472), (1696, 10755), (1908, 9560), (1912, 9540), (2120, 8604), (2151, 8480), (2385, 7648), (2390, 7632), (2544, 7170), (2868, 6360), (3180, 5736), (3585, 5088), (3816, 4780), (3824, 4770), (4240, 4302)]