61821540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31223}}^1$

素因数の和:31249

約数の個数: 72

約数和(自身を含む): 204579648

約数和(自身を除く): 142758108

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 31223, 62446, 93669, 124892, 156115, 187338, 281007, 312230, 343453, 374676, 468345, 562014, 624460, 686906, 936690, 1030359, 1124028, 1373812, 1405035, 1717265, 1873380, 2060718, 2810070, 3091077, 3434530, 4121436, 5151795, 5620140, 6182154, 6869060, 10303590, 12364308, 15455385, 20607180, 30910770, 61821540]

約数ペア:

[(1, 61821540), (2, 30910770), (3, 20607180), (4, 15455385), (5, 12364308), (6, 10303590), (9, 6869060), (10, 6182154), (11, 5620140), (12, 5151795), (15, 4121436), (18, 3434530), (20, 3091077), (22, 2810070), (30, 2060718), (33, 1873380), (36, 1717265), (44, 1405035), (45, 1373812), (55, 1124028), (60, 1030359), (66, 936690), (90, 686906), (99, 624460), (110, 562014), (132, 468345), (165, 374676), (180, 343453), (198, 312230), (220, 281007), (330, 187338), (396, 156115), (495, 124892), (660, 93669), (990, 62446), (1980, 31223)]