664546202480

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{997}}^1\times {\mathrm{438517}}^1$

素因数の和:439546

約数の個数: 80

約数和(自身を含む): 1628024386080

約数和(自身を除く): 963478183600

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 997, 1520, 1994, 3988, 4985, 7976, 9970, 15952, 18943, 19940, 37886, 39880, 75772, 79760, 94715, 151544, 189430, 303088, 378860, 438517, 757720, 877034, 1515440, 1754068, 2192585, 3508136, 4385170, 7016272, 8331823, 8770340, 16663646, 17540680, 33327292, 35081360, 41659115, 66654584, 83318230, 133309168, 166636460, 333272920, 437201449, 666545840, 874402898, 1748805796, 2186007245, 3497611592, 4372014490, 6995223184, 8306827531, 8744028980, 16613655062, 17488057960, 33227310124, 34976115920, 41534137655, 66454620248, 83068275310, 132909240496, 166136550620, 332273101240, 664546202480]

約数ペア:

[(1, 664546202480), (2, 332273101240), (4, 166136550620), (5, 132909240496), (8, 83068275310), (10, 66454620248), (16, 41534137655), (19, 34976115920), (20, 33227310124), (38, 17488057960), (40, 16613655062), (76, 8744028980), (80, 8306827531), (95, 6995223184), (152, 4372014490), (190, 3497611592), (304, 2186007245), (380, 1748805796), (760, 874402898), (997, 666545840), (1520, 437201449), (1994, 333272920), (3988, 166636460), (4985, 133309168), (7976, 83318230), (9970, 66654584), (15952, 41659115), (18943, 35081360), (19940, 33327292), (37886, 17540680), (39880, 16663646), (75772, 8770340), (79760, 8331823), (94715, 7016272), (151544, 4385170), (189430, 3508136), (303088, 2192585), (378860, 1754068), (438517, 1515440), (757720, 877034)]