79440660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1997}}^1$

素因数の和:2042

約数の個数: 144

約数和(自身を含む): 274908816

約数和(自身を除く): 195468156

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 30, 34, 36, 39, 45, 51, 52, 60, 65, 68, 78, 85, 90, 102, 117, 130, 153, 156, 170, 180, 195, 204, 221, 234, 255, 260, 306, 340, 390, 442, 468, 510, 585, 612, 663, 765, 780, 884, 1020, 1105, 1170, 1326, 1530, 1989, 1997, 2210, 2340, 2652, 3060, 3315, 3978, 3994, 4420, 5991, 6630, 7956, 7988, 9945, 9985, 11982, 13260, 17973, 19890, 19970, 23964, 25961, 29955, 33949, 35946, 39780, 39940, 51922, 59910, 67898, 71892, 77883, 89865, 101847, 103844, 119820, 129805, 135796, 155766, 169745, 179730, 203694, 233649, 259610, 305541, 311532, 339490, 359460, 389415, 407388, 441337, 467298, 509235, 519220, 611082, 678980, 778830, 882674, 934596, 1018470, 1168245, 1222164, 1324011, 1527705, 1557660, 1765348, 2036940, 2206685, 2336490, 2648022, 3055410, 3972033, 4413370, 4672980, 5296044, 6110820, 6620055, 7944066, 8826740, 13240110, 15888132, 19860165, 26480220, 39720330, 79440660]

約数ペア:

[(1, 79440660), (2, 39720330), (3, 26480220), (4, 19860165), (5, 15888132), (6, 13240110), (9, 8826740), (10, 7944066), (12, 6620055), (13, 6110820), (15, 5296044), (17, 4672980), (18, 4413370), (20, 3972033), (26, 3055410), (30, 2648022), (34, 2336490), (36, 2206685), (39, 2036940), (45, 1765348), (51, 1557660), (52, 1527705), (60, 1324011), (65, 1222164), (68, 1168245), (78, 1018470), (85, 934596), (90, 882674), (102, 778830), (117, 678980), (130, 611082), (153, 519220), (156, 509235), (170, 467298), (180, 441337), (195, 407388), (204, 389415), (221, 359460), (234, 339490), (255, 311532), (260, 305541), (306, 259610), (340, 233649), (390, 203694), (442, 179730), (468, 169745), (510, 155766), (585, 135796), (612, 129805), (663, 119820), (765, 103844), (780, 101847), (884, 89865), (1020, 77883), (1105, 71892), (1170, 67898), (1326, 59910), (1530, 51922), (1989, 39940), (1997, 39780), (2210, 35946), (2340, 33949), (2652, 29955), (3060, 25961), (3315, 23964), (3978, 19970), (3994, 19890), (4420, 17973), (5991, 13260), (6630, 11982), (7956, 9985), (7988, 9945)]