20122712071

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1\times {\mathrm{1667}}^1$

素因数の和:1964

約数の個数: 64

約数和(自身を含む): 27260190720

約数和(自身を除く): 7137478649

約数列:

[1, 7, 11, 19, 37, 77, 133, 209, 223, 259, 407, 703, 1463, 1561, 1667, 2453, 2849, 4237, 4921, 7733, 8251, 11669, 17171, 18337, 29659, 31673, 46607, 54131, 57757, 61679, 90761, 128359, 156769, 221711, 326249, 348403, 371741, 431753, 635327, 678469, 1097383, 1171901, 1724459, 2438821, 2602187, 4089151, 4749283, 7063079, 8203307, 12071213, 12890911, 13754417, 28624057, 49441553, 77693869, 90236377, 96280919, 151298587, 261333923, 543857083, 1059090109, 1829337461, 2874673153, 20122712071]

約数ペア:

[(1, 20122712071), (7, 2874673153), (11, 1829337461), (19, 1059090109), (37, 543857083), (77, 261333923), (133, 151298587), (209, 96280919), (223, 90236377), (259, 77693869), (407, 49441553), (703, 28624057), (1463, 13754417), (1561, 12890911), (1667, 12071213), (2453, 8203307), (2849, 7063079), (4237, 4749283), (4921, 4089151), (7733, 2602187), (8251, 2438821), (11669, 1724459), (17171, 1171901), (18337, 1097383), (29659, 678469), (31673, 635327), (46607, 431753), (54131, 371741), (57757, 348403), (61679, 326249), (90761, 221711), (128359, 156769)]