20530320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{653}}^1$

素因数の和:800

約数の個数: 80

約数和(自身を含む): 64228032

約数和(自身を除く): 43697712

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 131, 240, 262, 393, 524, 653, 655, 786, 1048, 1306, 1310, 1572, 1959, 1965, 2096, 2612, 2620, 3144, 3265, 3918, 3930, 5224, 5240, 6288, 6530, 7836, 7860, 9795, 10448, 10480, 13060, 15672, 15720, 19590, 26120, 31344, 31440, 39180, 52240, 78360, 85543, 156720, 171086, 256629, 342172, 427715, 513258, 684344, 855430, 1026516, 1283145, 1368688, 1710860, 2053032, 2566290, 3421720, 4106064, 5132580, 6843440, 10265160, 20530320]

約数ペア:

[(1, 20530320), (2, 10265160), (3, 6843440), (4, 5132580), (5, 4106064), (6, 3421720), (8, 2566290), (10, 2053032), (12, 1710860), (15, 1368688), (16, 1283145), (20, 1026516), (24, 855430), (30, 684344), (40, 513258), (48, 427715), (60, 342172), (80, 256629), (120, 171086), (131, 156720), (240, 85543), (262, 78360), (393, 52240), (524, 39180), (653, 31440), (655, 31344), (786, 26120), (1048, 19590), (1306, 15720), (1310, 15672), (1572, 13060), (1959, 10480), (1965, 10448), (2096, 9795), (2612, 7860), (2620, 7836), (3144, 6530), (3265, 6288), (3918, 5240), (3930, 5224)]