661858918140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{487}}^1\times {\mathrm{462263}}^1$

素因数の和:462776

約数の個数: 144

約数和(自身を含む): 2160200351232

約数和(自身を除く): 1498341433092

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 487, 490, 588, 735, 974, 980, 1461, 1470, 1948, 2435, 2922, 2940, 3409, 4870, 5844, 6818, 7305, 9740, 10227, 13636, 14610, 17045, 20454, 23863, 29220, 34090, 40908, 47726, 51135, 68180, 71589, 95452, 102270, 119315, 143178, 204540, 238630, 286356, 357945, 462263, 477260, 715890, 924526, 1386789, 1431780, 1849052, 2311315, 2773578, 3235841, 4622630, 5547156, 6471682, 6933945, 9245260, 9707523, 12943364, 13867890, 16179205, 19415046, 22650887, 27735780, 32358410, 38830092, 45301774, 48537615, 64716820, 67952661, 90603548, 97075230, 113254435, 135905322, 194150460, 225122081, 226508870, 271810644, 339763305, 450244162, 453017740, 675366243, 679526610, 900488324, 1125610405, 1350732486, 1359053220, 1575854567, 2251220810, 2701464972, 3151709134, 3376831215, 4502441620, 4727563701, 6303418268, 6753662430, 7879272835, 9455127402, 11030981969, 13507324860, 15758545670, 18910254804, 22061963938, 23637818505, 31517091340, 33092945907, 44123927876, 47275637010, 55154909845, 66185891814, 94551274020, 110309819690, 132371783628, 165464729535, 220619639380, 330929459070, 661858918140]

約数ペア:

[(1, 661858918140), (2, 330929459070), (3, 220619639380), (4, 165464729535), (5, 132371783628), (6, 110309819690), (7, 94551274020), (10, 66185891814), (12, 55154909845), (14, 47275637010), (15, 44123927876), (20, 33092945907), (21, 31517091340), (28, 23637818505), (30, 22061963938), (35, 18910254804), (42, 15758545670), (49, 13507324860), (60, 11030981969), (70, 9455127402), (84, 7879272835), (98, 6753662430), (105, 6303418268), (140, 4727563701), (147, 4502441620), (196, 3376831215), (210, 3151709134), (245, 2701464972), (294, 2251220810), (420, 1575854567), (487, 1359053220), (490, 1350732486), (588, 1125610405), (735, 900488324), (974, 679526610), (980, 675366243), (1461, 453017740), (1470, 450244162), (1948, 339763305), (2435, 271810644), (2922, 226508870), (2940, 225122081), (3409, 194150460), (4870, 135905322), (5844, 113254435), (6818, 97075230), (7305, 90603548), (9740, 67952661), (10227, 64716820), (13636, 48537615), (14610, 45301774), (17045, 38830092), (20454, 32358410), (23863, 27735780), (29220, 22650887), (34090, 19415046), (40908, 16179205), (47726, 13867890), (51135, 12943364), (68180, 9707523), (71589, 9245260), (95452, 6933945), (102270, 6471682), (119315, 5547156), (143178, 4622630), (204540, 3235841), (238630, 2773578), (286356, 2311315), (357945, 1849052), (462263, 1431780), (477260, 1386789), (715890, 924526)]