20056020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{241}}^1$

素因数の和:345

約数の個数: 96

約数和(自身を含む): 60170880

約数和(自身を除く): 40114860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 73, 76, 95, 114, 146, 190, 219, 228, 241, 285, 292, 365, 380, 438, 482, 570, 723, 730, 876, 964, 1095, 1140, 1205, 1387, 1446, 1460, 2190, 2410, 2774, 2892, 3615, 4161, 4380, 4579, 4820, 5548, 6935, 7230, 8322, 9158, 13737, 13870, 14460, 16644, 17593, 18316, 20805, 22895, 27474, 27740, 35186, 41610, 45790, 52779, 54948, 68685, 70372, 83220, 87965, 91580, 105558, 137370, 175930, 211116, 263895, 274740, 334267, 351860, 527790, 668534, 1002801, 1055580, 1337068, 1671335, 2005602, 3342670, 4011204, 5014005, 6685340, 10028010, 20056020]

約数ペア:

[(1, 20056020), (2, 10028010), (3, 6685340), (4, 5014005), (5, 4011204), (6, 3342670), (10, 2005602), (12, 1671335), (15, 1337068), (19, 1055580), (20, 1002801), (30, 668534), (38, 527790), (57, 351860), (60, 334267), (73, 274740), (76, 263895), (95, 211116), (114, 175930), (146, 137370), (190, 105558), (219, 91580), (228, 87965), (241, 83220), (285, 70372), (292, 68685), (365, 54948), (380, 52779), (438, 45790), (482, 41610), (570, 35186), (723, 27740), (730, 27474), (876, 22895), (964, 20805), (1095, 18316), (1140, 17593), (1205, 16644), (1387, 14460), (1446, 13870), (1460, 13737), (2190, 9158), (2410, 8322), (2774, 7230), (2892, 6935), (3615, 5548), (4161, 4820), (4380, 4579)]