20843760

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{653}}^1$

素因数の和:695

約数の個数: 160

約数和(自身を含む): 77852160

約数和(自身を除く): 57008400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 48, 56, 57, 60, 70, 76, 80, 84, 95, 105, 112, 114, 120, 133, 140, 152, 168, 190, 210, 228, 240, 266, 280, 285, 304, 336, 380, 399, 420, 456, 532, 560, 570, 653, 665, 760, 798, 840, 912, 1064, 1140, 1306, 1330, 1520, 1596, 1680, 1959, 1995, 2128, 2280, 2612, 2660, 3192, 3265, 3918, 3990, 4560, 4571, 5224, 5320, 6384, 6530, 7836, 7980, 9142, 9795, 10448, 10640, 12407, 13060, 13713, 15672, 15960, 18284, 19590, 22855, 24814, 26120, 27426, 31344, 31920, 36568, 37221, 39180, 45710, 49628, 52240, 54852, 62035, 68565, 73136, 74442, 78360, 86849, 91420, 99256, 109704, 124070, 137130, 148884, 156720, 173698, 182840, 186105, 198512, 219408, 248140, 260547, 274260, 297768, 347396, 365680, 372210, 434245, 496280, 521094, 548520, 595536, 694792, 744420, 868490, 992560, 1042188, 1097040, 1302735, 1389584, 1488840, 1736980, 2084376, 2605470, 2977680, 3473960, 4168752, 5210940, 6947920, 10421880, 20843760]

約数ペア:

[(1, 20843760), (2, 10421880), (3, 6947920), (4, 5210940), (5, 4168752), (6, 3473960), (7, 2977680), (8, 2605470), (10, 2084376), (12, 1736980), (14, 1488840), (15, 1389584), (16, 1302735), (19, 1097040), (20, 1042188), (21, 992560), (24, 868490), (28, 744420), (30, 694792), (35, 595536), (38, 548520), (40, 521094), (42, 496280), (48, 434245), (56, 372210), (57, 365680), (60, 347396), (70, 297768), (76, 274260), (80, 260547), (84, 248140), (95, 219408), (105, 198512), (112, 186105), (114, 182840), (120, 173698), (133, 156720), (140, 148884), (152, 137130), (168, 124070), (190, 109704), (210, 99256), (228, 91420), (240, 86849), (266, 78360), (280, 74442), (285, 73136), (304, 68565), (336, 62035), (380, 54852), (399, 52240), (420, 49628), (456, 45710), (532, 39180), (560, 37221), (570, 36568), (653, 31920), (665, 31344), (760, 27426), (798, 26120), (840, 24814), (912, 22855), (1064, 19590), (1140, 18284), (1306, 15960), (1330, 15672), (1520, 13713), (1596, 13060), (1680, 12407), (1959, 10640), (1995, 10448), (2128, 9795), (2280, 9142), (2612, 7980), (2660, 7836), (3192, 6530), (3265, 6384), (3918, 5320), (3990, 5224), (4560, 4571)]