20187455900

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{433}}^1\times {\mathrm{7643}}^1$

素因数の和:8151

約数の個数: 72

約数和(自身を含む): 44633591184

約数和(自身を除く): 24446135284

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 244, 305, 433, 610, 866, 1220, 1525, 1732, 2165, 3050, 4330, 6100, 7643, 8660, 10825, 15286, 21650, 26413, 30572, 38215, 43300, 52826, 76430, 105652, 132065, 152860, 191075, 264130, 382150, 466223, 528260, 660325, 764300, 932446, 1320650, 1864892, 2331115, 2641300, 3309419, 4662230, 6618838, 9324460, 11655575, 13237676, 16547095, 23311150, 33094190, 46622300, 66188380, 82735475, 165470950, 201874559, 330941900, 403749118, 807498236, 1009372795, 2018745590, 4037491180, 5046863975, 10093727950, 20187455900]

約数ペア:

[(1, 20187455900), (2, 10093727950), (4, 5046863975), (5, 4037491180), (10, 2018745590), (20, 1009372795), (25, 807498236), (50, 403749118), (61, 330941900), (100, 201874559), (122, 165470950), (244, 82735475), (305, 66188380), (433, 46622300), (610, 33094190), (866, 23311150), (1220, 16547095), (1525, 13237676), (1732, 11655575), (2165, 9324460), (3050, 6618838), (4330, 4662230), (6100, 3309419), (7643, 2641300), (8660, 2331115), (10825, 1864892), (15286, 1320650), (21650, 932446), (26413, 764300), (30572, 660325), (38215, 528260), (43300, 466223), (52826, 382150), (76430, 264130), (105652, 191075), (132065, 152860)]