20751420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{167}}^1$

素因数の和:307

約数の個数: 96

約数和(自身を含む): 62092800

約数和(自身を除く): 41341380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 109, 114, 167, 190, 218, 228, 285, 327, 334, 380, 436, 501, 545, 570, 654, 668, 835, 1002, 1090, 1140, 1308, 1635, 1670, 2004, 2071, 2180, 2505, 3173, 3270, 3340, 4142, 5010, 6213, 6346, 6540, 8284, 9519, 10020, 10355, 12426, 12692, 15865, 18203, 19038, 20710, 24852, 31065, 31730, 36406, 38076, 41420, 47595, 54609, 62130, 63460, 72812, 91015, 95190, 109218, 124260, 182030, 190380, 218436, 273045, 345857, 364060, 546090, 691714, 1037571, 1092180, 1383428, 1729285, 2075142, 3458570, 4150284, 5187855, 6917140, 10375710, 20751420]

約数ペア:

[(1, 20751420), (2, 10375710), (3, 6917140), (4, 5187855), (5, 4150284), (6, 3458570), (10, 2075142), (12, 1729285), (15, 1383428), (19, 1092180), (20, 1037571), (30, 691714), (38, 546090), (57, 364060), (60, 345857), (76, 273045), (95, 218436), (109, 190380), (114, 182030), (167, 124260), (190, 109218), (218, 95190), (228, 91015), (285, 72812), (327, 63460), (334, 62130), (380, 54609), (436, 47595), (501, 41420), (545, 38076), (570, 36406), (654, 31730), (668, 31065), (835, 24852), (1002, 20710), (1090, 19038), (1140, 18203), (1308, 15865), (1635, 12692), (1670, 12426), (2004, 10355), (2071, 10020), (2180, 9519), (2505, 8284), (3173, 6540), (3270, 6346), (3340, 6213), (4142, 5010)]