20121789492

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{18713}}^1$

素因数の和:18998

約数の個数: 144

約数和(自身を含む): 61797520512

約数和(自身を除く): 41675731020

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 28, 34, 36, 42, 51, 63, 68, 84, 102, 119, 126, 153, 204, 238, 251, 252, 306, 357, 476, 502, 612, 714, 753, 1004, 1071, 1428, 1506, 1757, 2142, 2259, 3012, 3514, 4267, 4284, 4518, 5271, 7028, 8534, 9036, 10542, 12801, 15813, 17068, 18713, 21084, 25602, 29869, 31626, 37426, 38403, 51204, 56139, 59738, 63252, 74852, 76806, 89607, 112278, 119476, 130991, 153612, 168417, 179214, 224556, 261982, 268821, 318121, 336834, 358428, 392973, 523964, 537642, 636242, 673668, 785946, 954363, 1075284, 1178919, 1272484, 1571892, 1908726, 2226847, 2357838, 2863089, 3817452, 4453694, 4696963, 4715676, 5726178, 6680541, 8907388, 9393926, 11452356, 13361082, 14090889, 18787852, 20041623, 26722164, 28181778, 32878741, 40083246, 42272667, 56363556, 65757482, 79848371, 80166492, 84545334, 98636223, 131514964, 159696742, 169090668, 197272446, 239545113, 295908669, 319393484, 394544892, 479090226, 558938597, 591817338, 718635339, 958180452, 1117877194, 1183634676, 1437270678, 1676815791, 2235754388, 2874541356, 3353631582, 5030447373, 6707263164, 10060894746, 20121789492]

約数ペア:

[(1, 20121789492), (2, 10060894746), (3, 6707263164), (4, 5030447373), (6, 3353631582), (7, 2874541356), (9, 2235754388), (12, 1676815791), (14, 1437270678), (17, 1183634676), (18, 1117877194), (21, 958180452), (28, 718635339), (34, 591817338), (36, 558938597), (42, 479090226), (51, 394544892), (63, 319393484), (68, 295908669), (84, 239545113), (102, 197272446), (119, 169090668), (126, 159696742), (153, 131514964), (204, 98636223), (238, 84545334), (251, 80166492), (252, 79848371), (306, 65757482), (357, 56363556), (476, 42272667), (502, 40083246), (612, 32878741), (714, 28181778), (753, 26722164), (1004, 20041623), (1071, 18787852), (1428, 14090889), (1506, 13361082), (1757, 11452356), (2142, 9393926), (2259, 8907388), (3012, 6680541), (3514, 5726178), (4267, 4715676), (4284, 4696963), (4518, 4453694), (5271, 3817452), (7028, 2863089), (8534, 2357838), (9036, 2226847), (10542, 1908726), (12801, 1571892), (15813, 1272484), (17068, 1178919), (18713, 1075284), (21084, 954363), (25602, 785946), (29869, 673668), (31626, 636242), (37426, 537642), (38403, 523964), (51204, 392973), (56139, 358428), (59738, 336834), (63252, 318121), (74852, 268821), (76806, 261982), (89607, 224556), (112278, 179214), (119476, 168417), (130991, 153612)]