201661820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:148

約数の個数: 144

約数和(自身を含む): 497726208

約数和(自身を除く): 296064388

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 31, 34, 38, 53, 62, 68, 76, 85, 95, 106, 124, 155, 170, 190, 212, 265, 310, 323, 340, 361, 380, 527, 530, 589, 620, 646, 722, 901, 1007, 1054, 1060, 1178, 1292, 1444, 1615, 1643, 1802, 1805, 2014, 2108, 2356, 2635, 2945, 3230, 3286, 3604, 3610, 4028, 4505, 5035, 5270, 5890, 6137, 6460, 6572, 7220, 8215, 9010, 10013, 10070, 10540, 11191, 11780, 12274, 16430, 17119, 18020, 19133, 20026, 20140, 22382, 24548, 27931, 30685, 31217, 32860, 34238, 38266, 40052, 44764, 50065, 55862, 55955, 61370, 62434, 68476, 76532, 85595, 95665, 100130, 111724, 111910, 122740, 124868, 139655, 156085, 171190, 190247, 191330, 200260, 223820, 279310, 312170, 325261, 342380, 380494, 382660, 530689, 558620, 593123, 624340, 650522, 760988, 951235, 1061378, 1186246, 1301044, 1626305, 1902470, 2122756, 2372492, 2653445, 2965615, 3252610, 3804940, 5306890, 5931230, 6505220, 10083091, 10613780, 11862460, 20166182, 40332364, 50415455, 100830910, 201661820]

約数ペア:

[(1, 201661820), (2, 100830910), (4, 50415455), (5, 40332364), (10, 20166182), (17, 11862460), (19, 10613780), (20, 10083091), (31, 6505220), (34, 5931230), (38, 5306890), (53, 3804940), (62, 3252610), (68, 2965615), (76, 2653445), (85, 2372492), (95, 2122756), (106, 1902470), (124, 1626305), (155, 1301044), (170, 1186246), (190, 1061378), (212, 951235), (265, 760988), (310, 650522), (323, 624340), (340, 593123), (361, 558620), (380, 530689), (527, 382660), (530, 380494), (589, 342380), (620, 325261), (646, 312170), (722, 279310), (901, 223820), (1007, 200260), (1054, 191330), (1060, 190247), (1178, 171190), (1292, 156085), (1444, 139655), (1615, 124868), (1643, 122740), (1802, 111910), (1805, 111724), (2014, 100130), (2108, 95665), (2356, 85595), (2635, 76532), (2945, 68476), (3230, 62434), (3286, 61370), (3604, 55955), (3610, 55862), (4028, 50065), (4505, 44764), (5035, 40052), (5270, 38266), (5890, 34238), (6137, 32860), (6460, 31217), (6572, 30685), (7220, 27931), (8215, 24548), (9010, 22382), (10013, 20140), (10070, 20026), (10540, 19133), (11191, 18020), (11780, 17119), (12274, 16430)]