206401720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:178

約数の個数: 192

約数和(自身を含む): 577843200

約数和(自身を除く): 371441480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 43, 49, 56, 62, 70, 79, 86, 98, 124, 140, 155, 158, 172, 196, 215, 217, 245, 248, 280, 301, 310, 316, 344, 392, 395, 430, 434, 490, 553, 602, 620, 632, 790, 860, 868, 980, 1085, 1106, 1204, 1240, 1333, 1505, 1519, 1580, 1720, 1736, 1960, 2107, 2170, 2212, 2408, 2449, 2666, 2765, 3010, 3038, 3160, 3397, 3871, 4214, 4340, 4424, 4898, 5332, 5530, 6020, 6076, 6665, 6794, 7595, 7742, 8428, 8680, 9331, 9796, 10535, 10664, 11060, 12040, 12152, 12245, 13330, 13588, 15190, 15484, 16856, 16985, 17143, 18662, 19355, 19592, 21070, 22120, 23779, 24490, 26660, 27176, 30380, 30968, 33970, 34286, 37324, 38710, 42140, 46655, 47558, 48980, 53320, 60760, 65317, 67940, 68572, 74648, 77420, 84280, 85715, 93310, 95116, 97960, 105307, 118895, 120001, 130634, 135880, 137144, 154840, 166453, 171430, 186620, 190232, 210614, 237790, 240002, 261268, 326585, 332906, 342860, 373240, 421228, 475580, 480004, 522536, 526535, 600005, 653170, 665812, 685720, 737149, 832265, 842456, 951160, 960008, 1053070, 1200010, 1306340, 1331624, 1474298, 1664530, 2106140, 2400020, 2612680, 2948596, 3329060, 3685745, 4212280, 4800040, 5160043, 5897192, 6658120, 7371490, 10320086, 14742980, 20640172, 25800215, 29485960, 41280344, 51600430, 103200860, 206401720]

約数ペア:

[(1, 206401720), (2, 103200860), (4, 51600430), (5, 41280344), (7, 29485960), (8, 25800215), (10, 20640172), (14, 14742980), (20, 10320086), (28, 7371490), (31, 6658120), (35, 5897192), (40, 5160043), (43, 4800040), (49, 4212280), (56, 3685745), (62, 3329060), (70, 2948596), (79, 2612680), (86, 2400020), (98, 2106140), (124, 1664530), (140, 1474298), (155, 1331624), (158, 1306340), (172, 1200010), (196, 1053070), (215, 960008), (217, 951160), (245, 842456), (248, 832265), (280, 737149), (301, 685720), (310, 665812), (316, 653170), (344, 600005), (392, 526535), (395, 522536), (430, 480004), (434, 475580), (490, 421228), (553, 373240), (602, 342860), (620, 332906), (632, 326585), (790, 261268), (860, 240002), (868, 237790), (980, 210614), (1085, 190232), (1106, 186620), (1204, 171430), (1240, 166453), (1333, 154840), (1505, 137144), (1519, 135880), (1580, 130634), (1720, 120001), (1736, 118895), (1960, 105307), (2107, 97960), (2170, 95116), (2212, 93310), (2408, 85715), (2449, 84280), (2666, 77420), (2765, 74648), (3010, 68572), (3038, 67940), (3160, 65317), (3397, 60760), (3871, 53320), (4214, 48980), (4340, 47558), (4424, 46655), (4898, 42140), (5332, 38710), (5530, 37324), (6020, 34286), (6076, 33970), (6665, 30968), (6794, 30380), (7595, 27176), (7742, 26660), (8428, 24490), (8680, 23779), (9331, 22120), (9796, 21070), (10535, 19592), (10664, 19355), (11060, 18662), (12040, 17143), (12152, 16985), (12245, 16856), (13330, 15484), (13588, 15190)]