19972620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:200

約数の個数: 144

約数和(自身を含む): 65808288

約数和(自身を除く): 45835668

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 61, 68, 85, 90, 102, 107, 122, 153, 170, 180, 183, 204, 214, 244, 255, 305, 306, 321, 340, 366, 428, 510, 535, 549, 610, 612, 642, 732, 765, 915, 963, 1020, 1037, 1070, 1098, 1220, 1284, 1530, 1605, 1819, 1830, 1926, 2074, 2140, 2196, 2745, 3060, 3111, 3210, 3638, 3660, 3852, 4148, 4815, 5185, 5457, 5490, 6222, 6420, 6527, 7276, 9095, 9333, 9630, 10370, 10914, 10980, 12444, 13054, 15555, 16371, 18190, 18666, 19260, 19581, 20740, 21828, 26108, 27285, 31110, 32635, 32742, 36380, 37332, 39162, 46665, 54570, 58743, 62220, 65270, 65484, 78324, 81855, 93330, 97905, 109140, 110959, 117486, 130540, 163710, 186660, 195810, 221918, 234972, 293715, 327420, 332877, 391620, 443836, 554795, 587430, 665754, 998631, 1109590, 1174860, 1331508, 1664385, 1997262, 2219180, 3328770, 3994524, 4993155, 6657540, 9986310, 19972620]

約数ペア:

[(1, 19972620), (2, 9986310), (3, 6657540), (4, 4993155), (5, 3994524), (6, 3328770), (9, 2219180), (10, 1997262), (12, 1664385), (15, 1331508), (17, 1174860), (18, 1109590), (20, 998631), (30, 665754), (34, 587430), (36, 554795), (45, 443836), (51, 391620), (60, 332877), (61, 327420), (68, 293715), (85, 234972), (90, 221918), (102, 195810), (107, 186660), (122, 163710), (153, 130540), (170, 117486), (180, 110959), (183, 109140), (204, 97905), (214, 93330), (244, 81855), (255, 78324), (305, 65484), (306, 65270), (321, 62220), (340, 58743), (366, 54570), (428, 46665), (510, 39162), (535, 37332), (549, 36380), (610, 32742), (612, 32635), (642, 31110), (732, 27285), (765, 26108), (915, 21828), (963, 20740), (1020, 19581), (1037, 19260), (1070, 18666), (1098, 18190), (1220, 16371), (1284, 15555), (1530, 13054), (1605, 12444), (1819, 10980), (1830, 10914), (1926, 10370), (2074, 9630), (2140, 9333), (2196, 9095), (2745, 7276), (3060, 6527), (3111, 6420), (3210, 6222), (3638, 5490), (3660, 5457), (3852, 5185), (4148, 4815)]