81819480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:313

約数の個数: 128

約数和(自身を含む): 255052800

約数和(自身を除く): 173233320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 47, 60, 89, 94, 120, 141, 163, 178, 188, 235, 267, 282, 326, 356, 376, 445, 470, 489, 534, 564, 652, 705, 712, 815, 890, 940, 978, 1068, 1128, 1304, 1335, 1410, 1630, 1780, 1880, 1956, 2136, 2445, 2670, 2820, 3260, 3560, 3912, 4183, 4890, 5340, 5640, 6520, 7661, 8366, 9780, 10680, 12549, 14507, 15322, 16732, 19560, 20915, 22983, 25098, 29014, 30644, 33464, 38305, 41830, 43521, 45966, 50196, 58028, 61288, 62745, 72535, 76610, 83660, 87042, 91932, 100392, 114915, 116056, 125490, 145070, 153220, 167320, 174084, 183864, 217605, 229830, 250980, 290140, 306440, 348168, 435210, 459660, 501960, 580280, 681829, 870420, 919320, 1363658, 1740840, 2045487, 2727316, 3409145, 4090974, 5454632, 6818290, 8181948, 10227435, 13636580, 16363896, 20454870, 27273160, 40909740, 81819480]

約数ペア:

[(1, 81819480), (2, 40909740), (3, 27273160), (4, 20454870), (5, 16363896), (6, 13636580), (8, 10227435), (10, 8181948), (12, 6818290), (15, 5454632), (20, 4090974), (24, 3409145), (30, 2727316), (40, 2045487), (47, 1740840), (60, 1363658), (89, 919320), (94, 870420), (120, 681829), (141, 580280), (163, 501960), (178, 459660), (188, 435210), (235, 348168), (267, 306440), (282, 290140), (326, 250980), (356, 229830), (376, 217605), (445, 183864), (470, 174084), (489, 167320), (534, 153220), (564, 145070), (652, 125490), (705, 116056), (712, 114915), (815, 100392), (890, 91932), (940, 87042), (978, 83660), (1068, 76610), (1128, 72535), (1304, 62745), (1335, 61288), (1410, 58028), (1630, 50196), (1780, 45966), (1880, 43521), (1956, 41830), (2136, 38305), (2445, 33464), (2670, 30644), (2820, 29014), (3260, 25098), (3560, 22983), (3912, 20915), (4183, 19560), (4890, 16732), (5340, 15322), (5640, 14507), (6520, 12549), (7661, 10680), (8366, 9780)]