81613260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{179}}^1$

素因数の和:360

約数の個数: 144

約数和(自身を含む): 265356000

約数和(自身を除く): 183742740

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, 149, 153, 170, 179, 180, 204, 255, 298, 306, 340, 358, 447, 510, 537, 596, 612, 716, 745, 765, 894, 895, 1020, 1074, 1341, 1490, 1530, 1611, 1788, 1790, 2148, 2235, 2533, 2682, 2685, 2980, 3043, 3060, 3222, 3580, 4470, 5066, 5364, 5370, 6086, 6444, 6705, 7599, 8055, 8940, 9129, 10132, 10740, 12172, 12665, 13410, 15198, 15215, 16110, 18258, 22797, 25330, 26671, 26820, 27387, 30396, 30430, 32220, 36516, 37995, 45594, 45645, 50660, 53342, 54774, 60860, 75990, 80013, 91188, 91290, 106684, 109548, 113985, 133355, 136935, 151980, 160026, 182580, 227970, 240039, 266710, 273870, 320052, 400065, 453407, 455940, 480078, 533420, 547740, 800130, 906814, 960156, 1200195, 1360221, 1600260, 1813628, 2267035, 2400390, 2720442, 4080663, 4534070, 4800780, 5440884, 6801105, 8161326, 9068140, 13602210, 16322652, 20403315, 27204420, 40806630, 81613260]

約数ペア:

[(1, 81613260), (2, 40806630), (3, 27204420), (4, 20403315), (5, 16322652), (6, 13602210), (9, 9068140), (10, 8161326), (12, 6801105), (15, 5440884), (17, 4800780), (18, 4534070), (20, 4080663), (30, 2720442), (34, 2400390), (36, 2267035), (45, 1813628), (51, 1600260), (60, 1360221), (68, 1200195), (85, 960156), (90, 906814), (102, 800130), (149, 547740), (153, 533420), (170, 480078), (179, 455940), (180, 453407), (204, 400065), (255, 320052), (298, 273870), (306, 266710), (340, 240039), (358, 227970), (447, 182580), (510, 160026), (537, 151980), (596, 136935), (612, 133355), (716, 113985), (745, 109548), (765, 106684), (894, 91290), (895, 91188), (1020, 80013), (1074, 75990), (1341, 60860), (1490, 54774), (1530, 53342), (1611, 50660), (1788, 45645), (1790, 45594), (2148, 37995), (2235, 36516), (2533, 32220), (2682, 30430), (2685, 30396), (2980, 27387), (3043, 26820), (3060, 26671), (3222, 25330), (3580, 22797), (4470, 18258), (5066, 16110), (5364, 15215), (5370, 15198), (6086, 13410), (6444, 12665), (6705, 12172), (7599, 10740), (8055, 10132), (8940, 9129)]