21498480

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{269}}^1$

素因数の和:328

約数の個数: 160

約数和(自身を含む): 76334400

約数和(自身を除く): 54835920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 37, 40, 45, 48, 54, 60, 72, 74, 80, 90, 108, 111, 120, 135, 144, 148, 180, 185, 216, 222, 240, 269, 270, 296, 333, 360, 370, 432, 444, 538, 540, 555, 592, 666, 720, 740, 807, 888, 999, 1076, 1080, 1110, 1332, 1345, 1480, 1614, 1665, 1776, 1998, 2152, 2160, 2220, 2421, 2664, 2690, 2960, 3228, 3330, 3996, 4035, 4304, 4440, 4842, 4995, 5328, 5380, 6456, 6660, 7263, 7992, 8070, 8880, 9684, 9953, 9990, 10760, 12105, 12912, 13320, 14526, 15984, 16140, 19368, 19906, 19980, 21520, 24210, 26640, 29052, 29859, 32280, 36315, 38736, 39812, 39960, 48420, 49765, 58104, 59718, 64560, 72630, 79624, 79920, 89577, 96840, 99530, 116208, 119436, 145260, 149295, 159248, 179154, 193680, 199060, 238872, 268731, 290520, 298590, 358308, 398120, 447885, 477744, 537462, 581040, 597180, 716616, 796240, 895770, 1074924, 1194360, 1343655, 1433232, 1791540, 2149848, 2388720, 2687310, 3583080, 4299696, 5374620, 7166160, 10749240, 21498480]

約数ペア:

[(1, 21498480), (2, 10749240), (3, 7166160), (4, 5374620), (5, 4299696), (6, 3583080), (8, 2687310), (9, 2388720), (10, 2149848), (12, 1791540), (15, 1433232), (16, 1343655), (18, 1194360), (20, 1074924), (24, 895770), (27, 796240), (30, 716616), (36, 597180), (37, 581040), (40, 537462), (45, 477744), (48, 447885), (54, 398120), (60, 358308), (72, 298590), (74, 290520), (80, 268731), (90, 238872), (108, 199060), (111, 193680), (120, 179154), (135, 159248), (144, 149295), (148, 145260), (180, 119436), (185, 116208), (216, 99530), (222, 96840), (240, 89577), (269, 79920), (270, 79624), (296, 72630), (333, 64560), (360, 59718), (370, 58104), (432, 49765), (444, 48420), (538, 39960), (540, 39812), (555, 38736), (592, 36315), (666, 32280), (720, 29859), (740, 29052), (807, 26640), (888, 24210), (999, 21520), (1076, 19980), (1080, 19906), (1110, 19368), (1332, 16140), (1345, 15984), (1480, 14526), (1614, 13320), (1665, 12912), (1776, 12105), (1998, 10760), (2152, 9990), (2160, 9953), (2220, 9684), (2421, 8880), (2664, 8070), (2690, 7992), (2960, 7263), (3228, 6660), (3330, 6456), (3996, 5380), (4035, 5328), (4304, 4995), (4440, 4842)]