218401820

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:153

約数の個数: 192

約数和(自身を含む): 602112000

約数和(自身を除く): 383710180

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 31, 35, 49, 52, 62, 65, 70, 79, 91, 98, 124, 130, 140, 155, 158, 182, 196, 217, 245, 260, 310, 316, 343, 364, 395, 403, 434, 455, 490, 553, 620, 637, 686, 790, 806, 868, 910, 980, 1027, 1085, 1106, 1274, 1372, 1519, 1580, 1612, 1715, 1820, 2015, 2054, 2170, 2212, 2449, 2548, 2765, 2821, 3038, 3185, 3430, 3871, 4030, 4108, 4340, 4459, 4898, 5135, 5530, 5642, 6076, 6370, 6860, 7189, 7595, 7742, 8060, 8918, 9796, 10270, 10633, 11060, 11284, 12245, 12740, 14105, 14378, 15190, 15484, 17143, 17836, 19355, 19747, 20540, 21266, 22295, 24490, 27097, 28210, 28756, 30380, 31837, 34286, 35945, 38710, 39494, 42532, 44590, 48980, 50323, 53165, 54194, 56420, 63674, 68572, 71890, 77420, 78988, 85715, 89180, 98735, 100646, 106330, 108388, 120001, 127348, 135485, 138229, 143780, 159185, 171430, 197470, 201292, 212660, 222859, 240002, 251615, 270970, 276458, 318370, 342860, 352261, 394940, 445718, 480004, 503230, 541940, 552916, 600005, 636740, 691145, 704522, 840007, 891436, 1006460, 1114295, 1200010, 1382290, 1409044, 1560013, 1680014, 1761305, 2228590, 2400020, 2764580, 3120026, 3360028, 3522610, 4200035, 4457180, 6240052, 7045220, 7800065, 8400070, 10920091, 15600130, 16800140, 21840182, 31200260, 43680364, 54600455, 109200910, 218401820]

約数ペア:

[(1, 218401820), (2, 109200910), (4, 54600455), (5, 43680364), (7, 31200260), (10, 21840182), (13, 16800140), (14, 15600130), (20, 10920091), (26, 8400070), (28, 7800065), (31, 7045220), (35, 6240052), (49, 4457180), (52, 4200035), (62, 3522610), (65, 3360028), (70, 3120026), (79, 2764580), (91, 2400020), (98, 2228590), (124, 1761305), (130, 1680014), (140, 1560013), (155, 1409044), (158, 1382290), (182, 1200010), (196, 1114295), (217, 1006460), (245, 891436), (260, 840007), (310, 704522), (316, 691145), (343, 636740), (364, 600005), (395, 552916), (403, 541940), (434, 503230), (455, 480004), (490, 445718), (553, 394940), (620, 352261), (637, 342860), (686, 318370), (790, 276458), (806, 270970), (868, 251615), (910, 240002), (980, 222859), (1027, 212660), (1085, 201292), (1106, 197470), (1274, 171430), (1372, 159185), (1519, 143780), (1580, 138229), (1612, 135485), (1715, 127348), (1820, 120001), (2015, 108388), (2054, 106330), (2170, 100646), (2212, 98735), (2449, 89180), (2548, 85715), (2765, 78988), (2821, 77420), (3038, 71890), (3185, 68572), (3430, 63674), (3871, 56420), (4030, 54194), (4108, 53165), (4340, 50323), (4459, 48980), (4898, 44590), (5135, 42532), (5530, 39494), (5642, 38710), (6076, 35945), (6370, 34286), (6860, 31837), (7189, 30380), (7595, 28756), (7742, 28210), (8060, 27097), (8918, 24490), (9796, 22295), (10270, 21266), (10633, 20540), (11060, 19747), (11284, 19355), (12245, 17836), (12740, 17143), (14105, 15484), (14378, 15190)]