20284020

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{659}}^1$

素因数の和:699

約数の個数: 120

約数和(自身を含む): 67082400

約数和(自身を除く): 46798380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 81, 90, 95, 108, 114, 135, 162, 171, 180, 190, 228, 270, 285, 324, 342, 380, 405, 513, 540, 570, 659, 684, 810, 855, 1026, 1140, 1318, 1539, 1620, 1710, 1977, 2052, 2565, 2636, 3078, 3295, 3420, 3954, 5130, 5931, 6156, 6590, 7695, 7908, 9885, 10260, 11862, 12521, 13180, 15390, 17793, 19770, 23724, 25042, 29655, 30780, 35586, 37563, 39540, 50084, 53379, 59310, 62605, 71172, 75126, 88965, 106758, 112689, 118620, 125210, 150252, 177930, 187815, 213516, 225378, 250420, 266895, 338067, 355860, 375630, 450756, 533790, 563445, 676134, 751260, 1014201, 1067580, 1126890, 1352268, 1690335, 2028402, 2253780, 3380670, 4056804, 5071005, 6761340, 10142010, 20284020]

約数ペア:

[(1, 20284020), (2, 10142010), (3, 6761340), (4, 5071005), (5, 4056804), (6, 3380670), (9, 2253780), (10, 2028402), (12, 1690335), (15, 1352268), (18, 1126890), (19, 1067580), (20, 1014201), (27, 751260), (30, 676134), (36, 563445), (38, 533790), (45, 450756), (54, 375630), (57, 355860), (60, 338067), (76, 266895), (81, 250420), (90, 225378), (95, 213516), (108, 187815), (114, 177930), (135, 150252), (162, 125210), (171, 118620), (180, 112689), (190, 106758), (228, 88965), (270, 75126), (285, 71172), (324, 62605), (342, 59310), (380, 53379), (405, 50084), (513, 39540), (540, 37563), (570, 35586), (659, 30780), (684, 29655), (810, 25042), (855, 23724), (1026, 19770), (1140, 17793), (1318, 15390), (1539, 13180), (1620, 12521), (1710, 11862), (1977, 10260), (2052, 9885), (2565, 7908), (2636, 7695), (3078, 6590), (3295, 6156), (3420, 5931), (3954, 5130)]